Climate for Station: Ann Arbor u of Mich, Michigan, United States
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Station Statistics
10-Year Trend
High: +1.02 °C/decade
Low: -0.96 °C/decade
Rain: -0.12 mm/decade
25-Year Trend
High: +0.45 °C/decade
Low: -0.26 °C/decade
Rain: -0.01 mm/decade
50-Year Trend
High: +0.40 °C/decade
Low: +0.21 °C/decade
Rain: -0.02 mm/decade
All-Time Trend
High: +0.12 °C/decade
Low: +0.10 °C/decade
Rain: +0.02 mm/decade
Percentage Above-Average Days
Last 12 Months: 55.9%
This Year: 8.3%
Precipitation Concentration Index (PCI) ℹ️
Last 12 Months: 9.9
Historical Average: 12.1
Percentile Rank of Last 12 Months ℹ️
High: 86th percentile
Low: 66th percentile
Rain: 63rd percentile
Change in Variance ℹ️
High: -7.9%
Low: -10.4%
Intraday: +49.9%
Data Coverage
83.6%
First Year of Data
1900
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 | 40.6 °C | — | -20.6 °C | 31.9 °C | — | -22.7 °C | 27.2 °C | — | -30.0 °C | 100.1 mm | — | 1524.0 mm | — |
| January | 22.2 °C | -0.4 °C | -20.6 °C | 14.1 °C | -4.9 °C | -22.7 °C | 11.7 °C | -8.2 °C | -30.0 °C | 49.6 mm | 1.6 mm | 356.0 mm | 9.6 mm |
| February | 22.8 °C | 0.8 °C | -19.4 °C | 14.3 °C | -3.6 °C | -20.2 °C | 11.7 °C | -7.9 °C | -29.4 °C | 64.8 mm | 1.6 mm | 279.0 mm | 9.4 mm |
| March | 29.4 °C | 7.0 °C | -12.8 °C | 19.4 °C | 1.9 °C | -15.9 °C | 16.7 °C | -3.1 °C | -22.2 °C | 59.7 mm | 1.9 mm | 1524.0 mm | 5.9 mm |
| April | 31.1 °C | 14.5 °C | -3.9 °C | 23.6 °C | 8.1 °C | -6.7 °C | 19.4 °C | 2.7 °C | -13.9 °C | 59.7 mm | 2.6 mm | 196.0 mm | 1.6 mm |
| May | 35.0 °C | 21.1 °C | 2.2 °C | 27.1 °C | 14.5 °C | 3.2 °C | 23.3 °C | 8.7 °C | -6.7 °C | 65.8 mm | 2.8 mm | 89.0 mm | 0.1 mm |
| June | 39.4 °C | 26.3 °C | 7.8 °C | 29.0 °C | 19.7 °C | 9.5 °C | 26.7 °C | 14.0 °C | 1.7 °C | 83.6 mm | 2.9 mm | 0.0 mm | 0.0 mm |
| July | 40.6 °C | 28.6 °C | 16.1 °C | 31.9 °C | 22.2 °C | 13.8 °C | 27.2 °C | 16.5 °C | 5.0 °C | 72.4 mm | 2.5 mm | 0.0 mm | 0.0 mm |
| August | 40.0 °C | 27.4 °C | 15.6 °C | 29.6 °C | 21.2 °C | 11.2 °C | 26.7 °C | 15.6 °C | 3.9 °C | 94.7 mm | 2.3 mm | 0.0 mm | 0.0 mm |
| September | 37.2 °C | 23.6 °C | 6.1 °C | 27.5 °C | 17.0 °C | 5.5 °C | 25.6 °C | 11.8 °C | -2.8 °C | 100.1 mm | 2.5 mm | 0.0 mm | 0.0 mm |
| October | 32.8 °C | 16.7 °C | 0.0 °C | 23.2 °C | 10.1 °C | -1.2 °C | 19.4 °C | 5.8 °C | -7.2 °C | 72.4 mm | 2.1 mm | 61.0 mm | 0.1 mm |
| November | 25.6 °C | 8.5 °C | -8.9 °C | 21.0 °C | 3.7 °C | -11.3 °C | 16.1 °C | -0.0 °C | -19.4 °C | 58.2 mm | 2.1 mm | 381.0 mm | 3.3 mm |
| December | 19.4 °C | 1.7 °C | -15.0 °C | 16.5 °C | -1.9 °C | -19.2 °C | 15.6 °C | -5.5 °C | -28.9 °C | 54.6 mm | 1.8 mm | 401.0 mm | 7.8 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
