Climate for Station: Hanover, New Hampshire, United States
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Station Statistics
10-Year Trend
High: -0.44 °C/decade
Low: -0.19 °C/decade
Rain: +0.13 mm/decade
25-Year Trend
High: +0.86 °C/decade
Low: +0.81 °C/decade
Rain: -0.13 mm/decade
50-Year Trend
High: +0.27 °C/decade
Low: +0.61 °C/decade
Rain: -0.02 mm/decade
All-Time Trend
High: +0.16 °C/decade
Low: +0.24 °C/decade
Rain: +0.01 mm/decade
Percentage Above-Average Days
Last 12 Months: 52.6%
This Year: 50.0%
Precipitation Concentration Index (PCI) ℹ️
Last 12 Months: 10.8
Historical Average: 11.9
Percentile Rank of Last 12 Months ℹ️
High: 82nd percentile
Low: 85th percentile
Rain: 31st percentile
Change in Variance ℹ️
High: -5.4%
Low: -15.5%
Intraday: -18.7%
Data Coverage
79.4%
First Year of Data
1884
Station Location
Weather Records
| Max High | Avg High | Min High | Max Avg | Avg Avg | Min Avg | Max Low | Avg Low | Min Low | Max Precipitation | Avg Precipitation | Max Snow | Avg Snow | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record | 39.4 °C | — | -24.4 °C | 28.8 °C | — | -28.3 °C | 25.0 °C | — | -40.0 °C | 143.5 mm | — | 622.0 mm | — |
| January | 17.8 °C | -1.8 °C | -21.7 °C | 11.7 °C | -7.4 °C | -28.3 °C | 10.6 °C | -12.7 °C | -36.7 °C | 57.4 mm | 2.3 mm | 381.0 mm | 16.6 mm |
| February | 18.9 °C | -0.1 °C | -20.6 °C | 9.6 °C | -5.9 °C | -25.1 °C | 9.4 °C | -12.1 °C | -40.0 °C | 53.8 mm | 2.3 mm | 622.0 mm | 17.1 mm |
| March | 30.0 °C | 5.5 °C | -14.4 °C | 17.5 °C | -0.9 °C | -20.0 °C | 10.6 °C | -6.1 °C | -35.0 °C | 104.1 mm | 2.5 mm | 432.0 mm | 11.4 mm |
| April | 33.9 °C | 13.1 °C | -3.9 °C | 22.6 °C | 6.2 °C | -12.4 °C | 16.7 °C | 0.2 °C | -17.8 °C | 60.7 mm | 2.7 mm | 445.0 mm | 3.7 mm |
| May | 35.6 °C | 20.4 °C | 3.9 °C | 25.9 °C | 12.9 °C | -0.0 °C | 24.4 °C | 6.3 °C | -6.7 °C | 74.5 mm | 2.9 mm | 224.0 mm | 0.3 mm |
| June | 37.0 °C | 25.0 °C | 10.0 °C | 28.6 °C | 17.6 °C | 7.9 °C | 22.2 °C | 11.4 °C | -1.7 °C | 73.7 mm | 3.1 mm | 0.0 mm | 0.0 mm |
| July | 38.3 °C | 27.6 °C | 13.9 °C | 28.8 °C | 20.2 °C | 9.7 °C | 25.0 °C | 14.3 °C | 2.8 °C | 143.5 mm | 3.3 mm | 13.0 mm | 0.0 mm |
| August | 39.4 °C | 26.3 °C | 12.8 °C | 28.4 °C | 19.1 °C | 8.6 °C | 23.9 °C | 13.3 °C | 0.6 °C | 111.2 mm | 3.0 mm | 94.0 mm | 0.9 mm |
| September | 36.1 °C | 21.9 °C | 5.0 °C | 25.5 °C | 15.0 °C | 2.6 °C | 22.2 °C | 9.2 °C | -5.6 °C | 84.5 mm | 2.9 mm | 0.0 mm | 0.0 mm |
| October | 30.6 °C | 15.2 °C | 0.0 °C | 21.5 °C | 8.4 °C | -2.7 °C | 21.7 °C | 3.2 °C | -11.7 °C | 93.7 mm | 2.7 mm | 152.0 mm | 0.3 mm |
| November | 26.1 °C | 7.3 °C | -10.6 °C | 21.0 °C | 2.2 °C | -14.2 °C | 17.2 °C | -2.2 °C | -24.4 °C | 96.8 mm | 2.8 mm | 406.0 mm | 4.7 mm |
| December | 24.4 °C | 0.2 °C | -24.4 °C | 13.7 °C | -3.8 °C | -23.3 °C | 10.6 °C | -9.2 °C | -38.3 °C | 61.0 mm | 2.5 mm | 495.0 mm | 13.7 mm |
Plots
Current Year Climate Trends vs Historical




Max Temperature this Year | 1 of 4
Climate 12-Month Moving Averages




Max Temperature 12-Month MA | 1 of 4
Daily Average Temperatures Throughout the Year



Average Max Temperature Throughout Year | 1 of 3
