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MemphisWeather.net Forecast Accuracy
The following table demonstrates the accuracy of the MemphisWeather.Net temperature forecasts as compared to various computer weather models for Memphis and the National Weather Service forecast for Memphis. The numbers listed are the average error (in °F) of the temperature forecast by month for each source of data. The rank (1-5) of each forecast is listed in parentheses after the average error, with the most accurate forecast receiving a (1).
Jump to: [ 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 ]
| Month | Nested Grid Model (NGM) | Aviation Model (AVN) | Medium Range Forecast (MRF) | NWS, Memphis (NWS) | Erik's Forecast |
| 1998 | |||||
| January | 3.17 (5) | 3.00 (4) | 2.96 (3) | 2.66 (2) | 2.47 (1) |
| February | 3.23 (2) | 3.55 (5) | 3.50 (4) | 3.28 (3) | 2.99 (1) |
| March | 3.35 (3) | 4.62 (5) | 4.60 (4) | 3.32 (2) | 3.17 (1) |
| April | 3.39 (3) | 3.75 (4) | 3.92 (5) | 3.16 (2) | 3.02 (1) |
| May | 2.59 (3) | 3.08 (4) | 3.24 (5) | 2.38 (2) | 2.21 (1) |
| June | 2.04 (2) | 2.73 (4) | 2.78 (5) | 2.10 (3) | 1.89 (1) |
| July | 2.67 (5) | 2.46 (3) | 2.52 (4) | 2.28 (2) | 2.15 (1) |
| August | 1.76 (2) | 1.83 (T3) | 1.83 (T3) | 1.84 (5) | 1.74 (1) |
| September | 2.62 (3) | 3.75 (4) | 3.96 (5) | 2.59 (2) | 2.47 (1) |
| October | 2.99 (3) | 3.86 (4) | 3.87 (5) | 2.84 (2) | 2.81 (1) |
| November | 3.56 (5) | 3.03 (3) | 3.23 (4) | 2.93 (2) | 2.92 (1) |
| December | 3.76 (3) | 4.21 (4) | 4.28 (5) | 3.53 (2) | 3.37 (1) |
| YEAR | 2.93 (3) | 3.32 (4) | 3.39 (5) | 2.74 (2) | 2.60 (1) |
| Month | Nested Grid Model (NGM) | Aviation Model (AVN) | Medium Range Forecast (MRF) | NWS, Memphis (NWS) | Erik's Forecast |
| 1999 | |||||
| January | 4.77 (3) | 4.78 (4) | 4.94 (5) | 4.31 (2) | 3.91 (1) |
| February | 4.40 (3) | 4.25 (2) | 4.41 (4) | 4.49 (5) | 4.15 (1) |
| March | 3.13 (4) | 3.08 (3) | 2.96 (1) | 2.99 (2) | 3.29 (5) |
| April | 3.70 (3) | 3.93 (4) | 4.06 (5) | 3.42 (2) | 3.07 (1) |
| May | 2.36 (3) | 2.41 (4) | 2.44 (5) | 2.03 (2) | 1.84 (1) |
| June | 2.00 (2) | 2.75 (4) | 2.85 (5) | 2.06 (3) | 1.86 (1) |
| July | 1.75 (3) | 1.78 (4) | 1.87 (5) | 1.65 (2) | 1.35 (1) |
| August | 2.04 (1) | 3.08 (4) | 3.22 (5) | 2.35 (3) | 2.20 (2) |
| September | 2.63 (2) | 4.27 (4) | 4.44 (5) | 2.69 (3) | 2.58 (1) |
| October | 3.04 (3) | 4.10 (4) | 4.12 (5) | 3.00 (2) | 2.87 (1) |
| November | 2.72 (2) | 3.13 (4) | 3.41 (5) | 2.81 (3) | 2.66 (1) |
| December | 3.00 (1) | 3.35 (4) | 3.56 (5) | 3.20 (3) | 3.10 (2) |
| YEAR | 2.96 (3) | 3.41 (4) | 3.52 (5) | 2.92 (2) | 2.74 (1) |
| Month | Nested Grid Model (NGM) | Aviation Model (AVN/MAV) | Medium Range Forecast (MRF) | NWS, Memphis (NWS) | Erik's Forecast |
| 2000 | |||||
| January | 4.25 (4) | 4.23 (3) | 4.30 (5) | 3.71 (2) | 3.57 (1) |
| February | 3.97 (4) | 3.96 (3) | 3.98 (5) | 3.70 (T1) | 3.70 (T1) |
| March | 3.67 (5) | 3.41 (T3) | 3.33 (2) | 3.41 (T3) | 3.31 (1) |
| April | 3.15 (3) | 3.25 (T4) | 3.25 (T4) | 3.10 (2) | 2.97 (1) |
| May | 2.55 (4) | 2.47 (2) | 2.62 (5) | 2.35 (2) | 2.07 (1) |
| June | 2.27 (3) | 2.28 (4) | 2.31 (5) | 2.12 (2) | 1.98 (1) |
| July | 1.96 (3) | 2.02 (5) | 1.90 (2) | 1.97 (4) | 1.87 (1) |
| August | 2.47 (5) | 2.21 (4) | 2.11 (3) | 1.90 (2) | 1.78 (1) |
| September | 3.69 (5) | 2.87 (2) | 3.04 (3) | 3.08 (4) | 2.58 (1) |
| October | 2.98 (5) | 2.35 (2) | 2.42 (3) | 2.61 (4) | 2.34 (1) |
| November | 3.36 (3) | 3.60 (4) | 3.80 (5) | 3.35 (2) | 3.14 (1) |
| December | 3.97 (5) | 3.02 (3) | 3.47 (4) | 2.92 (2) | 2.70 (1) |
| YEAR | 3.19 (5) | 2.97 (3) | 3.04 (4) | 2.85 (2) | 2.67 (1) |
| Month | Nested Grid Model (NGM) | New Aviation Model (MAV) | New Medium Range Forecast (MEX) | NWS, Memphis (NWS) | Erik's Forecast |
| 2001 | |||||
| January | 3.36 (3) | 3.52 (5) | 3.45 (4) | 3.19 (1) | 3.27 (2) |
| February | 4.09 (4) | 3.83 (3) | 4.20 (5) | 3.69 (2) | 3.36 (1) |
| March | 3.09 (4) | 3.04 (3) | 3.16 (5) | 2.92 (2) | 2.83 (1) |
| April | 2.72 (5) | 2.25 (2) | 2.31 (T3) | 2.31 (T3) | 2.04 (1) |
| May | 2.53 (3) | 2.94 (5) | 2.56 (4) | 2.39 (2) | 2.25 (1) |
| June | 2.14 (5) | 1.91 (3) | 2.05 (4) | 1.88 (2) | 1.60 (1) |
| July | 1.64 (1) | 2.02 (4) | 2.06 (5) | 1.81 (3) | 1.75 (2) |
| August | 1.74 (3) | 1.88 (4) | 2.16 (5) | 1.73 (2) | 1.68(1) |
| September | 2.36 (T3) | 2.36 (T3) | 2.46 (5) | 2.20 (2) | 2.14(1) |
| October | 3.05 (5) | 2.41 (3) | 2.40 (2) | 2.58 (4) | 2.15(1) |
| November | 2.79 (3) | 2.90 (4) | 3.26 (5) | 2.57 (2) | 2.50(1) |
| December | 3.44 (2) | 4.29 (4) | 4.47 (5) | 3.75 (3) | 3.43(1) |
| YEAR | 2.75 (3) | 2.78 (4) | 2.92 (5) | 2.58 (2) | 2.42 (1) |
| Month | Nested Grid Model (NGM) | New Aviation Model (MAV) | New Medium Range Forecast (MEX) | NWS, Memphis (NWS) | Erik's Forecast |
| 2002 | |||||
| January | 5.01 (4) | 4.59 (3) | 5.03 (5) | 3.81 (2) | 3.66 (1) |
| February | 2.71 (T1) | 3.15 (4) | 3.48 (5) | 3.12 (3) | 2.71 (T1) |
| March | 3.96 (5) | 3.58 (2) | 3.82 (4) | 3.65 (3) | 3.35 (1) |
| April | 3.19 (5) | 2.82 (2) | 2.90 (3) | 2.97 (4) | 2.47 (1) |
| May | 3.07 (4) | 2.69 (2) | 3.45 (5) | 2.73 (3) | 2.60 (1) |
| June | 1.81 (3) | 1.82 (4) | 1.87 (5) | 1.63 (2) | 1.39 (1) |
| July | 2.23 (2) | 2.24 (3) | 2.40 (5) | 2.28 (4) | 2.03 (1) |
| August | 1.74 (3) | 1.59 (2) | 1.80 (4) | 1.96 (5) | 1.55 (1) |
| September | 2.78 (5) | 2.40 (2) | 2.69 (4) | 2.44 (3) | 2.02 (1) |
| October | 3.66 (5) | 3.17 (2) | 3.55 (4) | 3.50 (3) | 3.03 (1) |
| November | 3.24 (3) | 3.34 (4) | 3.49 (5) | 3.10 (2) | 2.79 (1) |
| December | 3.16 (4) | 2.96 (3) | 3.17 (5) | 2.89 (2) | 2.61 (1) |
| YEAR | 3.04 (4) | 2.86 (3) | 3.14 (5) | 2.84 (2) | 2.52 (1) |
| Month | Nested Grid Model (NGM) | New Aviation Model (MAV) | ETA Model (ETA) | NWS, Memphis (NWS) | MWN Forecast |
| 2003 | |||||
| January | 3.54 (3) | 3.59 (4) | -- | 3.37 (2) | 3.15 (1) |
| February | 4.05 (5) | 2.85 (T1) | -- | 3.11 (3) | 3.15 (T1) |
| March | 3.45 (3) | 3.59 (4) | -- | 3.23 (2) | 3.14 (1) |
| April | 2.77 (3) | 2.79 (4) | -- | 2.59 (2) | 2.39 (1) |
| May | 2.56 (4) | 2.44 (3) | 2.60 (5) | 2.08 (2) | 1.95 (1) |
| June | 2.72 (4) | 2.38 (2) | 3.00 (5) | 2.62 (3) | 2.34 (1) |
| July | 1.48 (2) | 1.65 (3) | 1.77 (5) | 1.69 (4) | 1.45 (1) |
| August | 1.82 (4) | 1.87 (5) | 1.77 (2) | 1.81 (3) | 1.58 (1) |
| September | 3.18 (5) | 2.29 (1) | 3.06 (4) | 2.80 (3) | 2.50 (2) |
| October | 2.85 (4) | 2.84 (3) | 3.54 (5) | 2.73 (2) | 2.33 (1) |
| November | 3.84 (4) | 3.54 (3) | 4.38 (5) | 3.26 (2) | 2.98 (1) |
| December | 3.26 (4) | 2.86 (2) | 4.30 (5) | 2.90 (3) | 2.57 (1) |
| YEAR | 2.96 (4) | 2.72 (3) | 3.05 (5) | 2.68 (2) | 2.44 (1) |
| Month | Nested Grid Model (NGM) | Global Forecast System (GFS) | ETA Model (ETA) | NWS, Memphis (NWS) | MWN Forecast |
| 2004 | |||||
| January | 3.78 (4) | 3.16 (3) | 4.96 (5) | 3.10 (2) | 3.02 (1) |
| February | 2.77 (3) | 2.81 (4) | 3.24 (5) | 2.69 (2) | 2.50 (1) |
| March | 3.79 (5) | 3.30 (3) | 3.03 (1) | 3.36 (4) | 3.07 (2) |
| April | 3.01 (5) | 2.45 (2) | 2.77 (4) | 2.56 (3) | 2.26 (1) |
| May | 2.60 (5) | 1.96 (2) | 2.06 (T3) | 2.06 (T3) | 1.73 (1) |
| June | 1.91 (2) | 2.12 (4) | 2.17 (5) | 1.97 (3) | 1.78 (1) |
| July | 1.95 (2) | 2.06 (4) | 2.07 (5) | 2.04 (3) | 1.74 (1) |
| August | 2.00 (4) | 1.66 (2) | 2.17 (5) | 1.88 (3) | 1.59 (1) |
| September | 2.34 (5) | 1.93 (3) | 1.90 (2) | 1.95 (4) | 1.74 (1) |
| October | 4.23 (5) | 3.99 (4) | 3.53 (3) | 3.47 (2) | 3.29 (1) |
| November | 3.28 (3) | 3.43 (4) | 3.20 (2) | 3.46 (5) | 3.06 (1) |
| December | 3.12 (2) | 3.45 (5) | 3.27 (3) | 3.31 (4) | 3.03 (1) |
| YEAR | 2.90 (5) | 2.69 (3) | 2.86 (4) | 2.65 (2) | 2.40 (1) |
| Month | Nested Grid Model (NGM) | Global Forecast System (GFS) | North American Mesoscale (NAM) | NWS, Memphis (NWS) | MWN Forecast |
| 2005 | |||||
| January | 3.64 (4) | 3.19 (3) | 3.65 (5) | 3.08 (2) | 2.89 (1) |
| February | 2.91 (2) | 3.24 (4) | 3.05 (3) | 3.35 (5) | 2.90 (1) |
| March | 3.61 (5) | 3.50 (2) | 3.52 (T3) | 3.52 (T3) | 3.19 (1) |
| April | 3.05 (T2) | 3.23 (4) | 3.31 (5) | 3.05 (T2) | 3.00 (1) |
| May | 2.33 (1) | 2.65 (4) | 2.94 (5) | 2.61 (3) | 2.43 (2) |
| June | 2.09 (2) | 2.66 (4) | 2.69 (5) | 2.19 (3) | 2.02 (1) |
| July | 2.22 (5) | 1.72 (2) | 2.02 (4) | 1.89 (3) | 1.57 (1) |
| August | 2.46 (4) | 2.45 (3) | 2.73 (5) | 2.11 (2) | 1.92 (1) |
| September | 2.81 (5) | 2.23 (2) | 2.43 (T3) | 2.43 (T3) | 2.11 (1) |
| October | 2.44 (3) | 2.73 (5) | 2.60 (4) | 2.37 (2) | 2.05 (1) |
| November | 3.74 (5) | 2.77 (2) | 2.93 (4) | 2.91 (3) | 2.64 (1) |
| December | 3.60 (5) | 3.11 (2) | 3.50 (4) | 3.12 (3) | 2.94 (1) |
| YEAR | 2.91 (4) | 2.79 (3) | 2.95 (5) | 2.72 (2) | 2.47 (1) |
| Month | Nested Grid Model (NGM) | Global Forecast System (GFS) | North American Mesoscale (NAM) | NWS, Memphis (NWS) | MWN Forecast |
| 2006 | |||||
| January | 3.70 (5) | 3.02 (3) | 3.20 (4) | 2.86 (2) | 2.72 (1) |
| February | 3.04 (4) | 3.06 (5) | 3.00 (3) | 2.68 (2) | 2.56(1) |
| March | 3.57 (T3) | 3.64 (5) | 3.46 (2) | 3.57 (T3) | 3.11(1) |
| April | 3.36 (5) | 2.64 (3) | 3.26 (4) | 2.60 (2) | 2.34(1) |
| May | 3.14 (5) | 2.83 (4) | 2.74 (3) | 2.70 (2) | 2.45(1) |
| June | 1.92 (1) | 1.97 (3) | 2.06 (5) | 1.94 (2) | 2.02 (4) |
| July | 2.09 (4) | 1.95 (3) | 2.37 (5) | 1.81 (2) | 1.74 (1) |
| August | 2.40 (5) | 1.85 (3) | 2.33 (4) | 1.83 (2) | 1.73 (1) |
| September | 3.51 (5) | 2.65 (2) | 3.32 (4) | 2.79 (3) | 2.60 (1) |
| October | 3.51 (5) | 2.65 (2) | 3.32 (4) | 2.79 (3) | 2.60 (1) |
| November | 3.68 (5) | 3.10 (3) | 3.18 (4) | 2.82 (T1) | 2.82 (T1) |
| December | 3.00 (4) | 2.71 (3) | 3.37 (5) | 2.50 (2) | 2.39 (1) |
| YEAR | 3.01 (5) | 2.63 (3) | 2.90 (4) | 2.54 (2) | 2.38 (1) |
| Month | Nested Grid Model (NGM) | Global Forecast System (GFS) | North American Mesoscale (NAM) | NWS, Memphis (NWS) | MWN Forecast |
| 2007 | |||||
| January | 3.48 (4) | 3.14 (3) | 3.49 (5) | 3.04 (2) | 2.84 (1) |
| February | 3.61 (4) | 3.63 (5) | 3.16 (2) | 3.17 (3) | 2.99 (1) |
| March | 3.99 (5) | 2.96 (3) | 3.11 (4) | 2.92 (2) | 2.59 (1) |
| April | 2.81 (3) | 2.54 (1) | 2.92 (5) | 2.82 (4) | 2.57 (2) |
| May | 2.20 (4) | 2.11 (3) | 2.41 (5) | 1.94 (1) | 1.96 (2) |
| June | 2.34 (4) | 2.13 (3) | 2.76 (5) | 1.94 (2) | 1.85 (1) |
| July | 2.09 (5) | 1.63 (2) | 1.99 (4) | 1.66 (3) | 1.52 (1) |
| August | 2.54 (4) | 2.02 (3) | 3.39 (5) | 1.67 (1) | 1.68 (2) |
| September | 3.64 (4) | 3.02 (3) | 3.76 (5) | 2.94 (2) | 2.79 (1) |
| October | 3.83 (5) | 2.26 (2) | 3.34 (4) | 2.33 (3) | 1.96 (1) |
| November | 2.89 (5) | 2.61 (4) | 2.55 (3) | 2.06 (1) | 2.09 (2) |
| December | 3.34 (3) | 3.58 (5) | 3.41 (4) | 3.25 (2) | 3.09 (1) |
| YEAR | 3.06 (5) | 2.64 (3) | 3.03 (4) | 2.48 (2) | 2.33 (1) |
| Month | Nested Grid Model (NGM) | Global Forecast System (GFS) | North American Mesoscale (NAM) | NWS, Memphis (NWS) | MWN Forecast |
| 2008 | |||||
| January | 3.95 (4) | 3.74 (2) | 4.07 (5) | 3.77 (3) | 3.62 (1) |
| February | 4.74 (5) | 4.48 (2) | 4.64 (3) | 4.66 (4) | 4.37 (1) |
| March | 3.59 (5) | 2.82 (1) | 3.49 (4) | 3.16 (3) | 2.83 (2) |
| April | 3.12 (4) | 2.71 (3) | 3.13 (5) | 2.57 (2) | 2.50 (1) |
| May | 2.67 (5) | 2.45 (4) | 2.29 (2) | 2.37 (3) | 2.15 (1) |
| June | 1.76 (4) | 2.09 (5) | 1.73 (3) | 1.67 (2) | 1.59 (1) |
| July | 1.81 (3) | 1.88 (5) | 1.85 (4) | 1.63 (2) | 1.46 (1) |
| August | 2.29 (2) | 2.55 (5) | 2.30 (3) | 2.31 (4) | 2.18 (1) |
| September | 2.85 (5) | 2.28 (T2) | 2.79 (4) | 2.28 (T2) | 2.23 (1) |
| October | 2.65 (5) | 2.40 (3) | 2.44 (4) | 2.12 (2) | 1.99 (1) |
| November | 3.13 (1) | 3.55 (5) | 3.26 (4) | 3.16 (T2) | 3.16 (T2) |
| December | 3.49 (4) | 4.31 (5) | 3.18 (2) | 3.22 (3) | 2.93 (1) |
| YEAR | 3.00 (5) | 2.94 (4) | 2.93 (3) | 2.74 (2) | 2.59 (1) |
| Month | Nested Grid Model (NGM) | Global Forecast System (GFS) | North American Mesoscale (NAM) | NWS, Memphis (NWS) | MWN Forecast |
| 2009 | |||||
| January | 3.22 (4) | 4.09 (5) | 2.98 (1) | 3.12 (3) | 3.05 (2) |
| February | 3.66 (4) | 3.94 (5) | 2.77 (2) | 2.84 (3) | 2.73 (1) |
| March | --- | 3.18 (4) | 2.78 (2) | 2.88 (3) | 2.73 (1) |
| April | --- | 2.56 (4) | 2.44 (2) | 2.48 (3) | 2.38 (1) |
| May | --- | 2.26 (3) | 2.65 (4) | 1.93 (1) | 2.05 (2) |
| June | --- | 2.32 (4) | 2.16 (3) | 2.03 (2) | 1.92 (1) |
| July | --- | 2.46 (4) | 2.16 (T2) | 2.16 (T2) | 1.87 (1) |
| August | --- | 2.30 (4) | 1.77 (3) | 1.76 (2) | 1.60 (1) |
| September | --- | 2.37 (T2) | 2.58 (4) | 2.37 (T2) | 2.06 (1) |
| October | --- | 2.82 (3) | 3.48 (4) | 2.55 (2) | 2.37 (1) |
| November | --- | 2.47 (2) | 2.86 (4) | 2.53 (3) | 2.18 (1) |
| December | --- | 3.33 (4) | 2.87 (3) | 2.67 (2) | 2.53 (1) |
| YEAR | 3.44 (5) | 2.83 (4) | 2.63 (3) | 2.44 (2) | 2.29 (1) |
| Month | Global Forecast System (GFS) | North American Mesoscale (NAM) | NWS, Memphis (NWS) | MWN Forecast | |
| 2010 | |||||
| January | 3.12 (3) | 3.17 (4) | 3.00 (2) | 2.53 (1) | |
| February | 2.98 (4) | 2.70 (3) | 2.59 (2) | 2.39 (1) | |
| March | 1.72 (2) | 2.60 (4) | 1.93 (3) | 1.71 (1) | |
| April | 2.16 (3) | 2.36 (4) | 2.00 (2) | 1.88 (1) | |
| May | 1.70 (T2) | 2.14 (4) | 1.70 (T2) | 1.52 (1) | |
| June | 1.63 (3) | 1.73 (4) | 1.61 (2) | 1.56 (1) | |
| July | 2.03 (4) | 2.01 (3) | 1.71 (2) | 1.67 (1) | |
| August | 1.73 (3) | 1.88 (4) | 1.72 (2) | 1.47 (1) | |
| September | 2.55 (4) | 2.51 (3) | 2.26 (2) | 2.06 (1) | |
| October | 2.64 (3) | 3.28 (4) | 2.57 (2) | 2.41 (1) | |
| November | 3.70 (3) | 3.80 (4) | 3.30 (2) | 3.17 (1) | |
| December | 2.88 (3) | 3.17 (4) | 2.41 (2) | 2.30 (1) | |
| YEAR | 2.41 (3) | 2.61 (4) | 2.23 (2) | 2.05 (1) | |
| Month | Global Forecast System (GFS) | North American Mesoscale (NAM) | NWS, Memphis (NWS) | MWN Forecast | |
| 2011 | |||||
| January | 3.65 (4) | 3.22 (3) | 3.13 (2) | 2.87 (1) | |
| February | 3.68 (4) | 3.41 (3) | 3.36 (2) | 3.25 (1) | |
| March | 3.31 (4) | 3.07 (2) | 3.21 (3) | 2.90 (1) | |
| April | 2.97 (4) | 2.72 (3) | 2.70 (2) | 2.55 (1) | |
| May | 1.87 (T2) | 1.87 (T2) | 1.95 (4) | 1.71 (1) | |
| June | 2.13 (4) | 1.97 (3) | 1.94 (2) | 1.78 (1) | |
| July | 2.00 (4) | 1.92 (3) | 1.64 (2) | 1.63 (1) | |
| August | 3.31 (4) | 3.11 (2) | 3.15 (3) | 2.88 (1) | |
| September | 2.31 (2) | 2.74 (4) | 2.43 (3) | 2.22 (1) | |
| October | 2.11 (3) | 2.63 (4) | 1.96 (2) | 1.86 (1) | |
| November | 3.17 (3) | 3.36 (4) | 3.04 (2) | 2.70 (1) | |
| December | 2.42 (2) | 2.78 (4) | 2.52 (3) | 2.23 (1) | |
| YEAR | 2.74 (4) | 2.73 (3) | 2.59 (2) | 2.38 (1) | |
| Month | Global Forecast System (GFS) | GFS LAMP (MAV)* | North American Mesoscale (NAM) | NWS, Memphis (NWS) | MWN Forecast |
| 2012 | |||||
| January | 3.16 (3) | 2.91 (2) | 3.18 (4) | 3.31 (5) | 2.88 (1) |
| February | 2.74 (4) | 2.32 (1) | 3.23 (5) | 2.59 (3) | 2.54 (2) |
| March | 2.64 (3) | 2.15 (1) | 3.18 (5) | 2.71 (4) | 2.59 (2) |
| April | 2.55 (3) | 2.62 (4) | 2.82 (5) | 2.26 (2) | 2.11 (1) |
| May | 1.76 (2) | 1.95 (4) | 2.08 (5) | 1.89 (3) | 1.75 (1) |
| June | 1.79 (4) | 1.60 (3) | 1.98 (5) | 1.49 (2) | 1.36 (1) |
| July | 2.17 (3) | 2.35 (4) | 2.72 (5) | 2.06 (2) | 1.88 (1) |
| August | 3.35 (5) | 3.13 (4) | 2.91 (3) | 2.87 (2) | 2.62 (1) |
| September | 2.13 (T3) | 2.00 (2) | 2.32 (5) | 2.13 (T3) | 1.94 (1) |
| October | 2.47 (3) | 2.22 (1) | 2.85 (5) | 2.49 (4) | 2.45 (2) |
| November | 2.42 (3) | 2.67 (4) | 2.87 (5) | 2.33 (2) | 2.14 (1) |
* GFS LAMP data only available for 25 hrs. All other forecasts extend out to 60 hours.
