Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >
Last Updated: 8/25/2023
| Temperature (in degrees Fahrenheit) | |
| Highest Temperature | 105 degrees on July 24, 1934 |
| Lowest Temperature | -27 degrees on January 20, 1985 |
| Warmest Month | 81.3 degrees in July 1955 |
| Coldest Month | 10.1 degrees in January 1977 |
| Warmest Season | 76.7 degrees in Summer of 2020 |
| Coldest Season | 18.3 degrees in Winter of 1903-04 |
| Warmest Year | 54.5 degrees in 2012 |
| Coldest Year | 45.1 degrees in 1875 |
| Highest Heat Index |
Hourly observations only: 118 degrees on July 13, 1995 and August 24, 2023 Including intra-hour observations (since 1996): 120 degrees on August 24, 2023 |
| Lowest Relative Humidity | 12% on April 20, 2019 |
| Highest Dew Point | 83 degrees on July 30, 1999 |
| Lowest Dew Point | -40 degrees on January 20, 1985 |
| Precipitation (in inches) | |
| Wettest Year | 50.86 in 2008 |
| Driest Year | 22.22 in 1962 |
| Wettest Season | 23.48 Summer (Jun – Aug) of 1987 |
| Driest Season | 1.60 Winter (Dec – Feb) of 2002 - 2003 |
| Wettest Month | 17.10 in August 1987 |
| Driest Month | 0.01 in September 1979 |
| Greatest in 24 Hours | 9.35 on August 13th-14th 1987 |
| Greatest Calendar Day | 6.86 on July 23, 2011 |
| Snowfall (in inches) | |
| Seasonal (Jul – Jun) Greatest | 89.7 in 1978 - 1979 |
| Seasonal (Jul – Jun) Least | 9.8 in 1920 - 1921 |
| Winter (Dec – Feb) Greatest | 80.6 in 1978 – 1979 |
| Winter (Dec – Feb) Least | 5.7 in 1930 - 1931 |
| Greatest Total: | |
| Month | 42.5 in January, 1918 |
| Storm | 23.0 on January 26 – 27, 1967 |
| 24 Hours | 20.0 on February 1-2, 2011 |
| Calendar Day | 18.6 on January 2, 1999 |
| Snow Depth | 29 inches on January 14, 1979 |
| Pressure (in inches of Mercury) | |
| Highest | 30.98 on Feb 16, 1989 |
| Lowest | 28.70 on March 12, 1923 |
| Wind (in mph) | |
| Highest Gust | 87 on February 12, 1894 |
| Coldest Wind Chill | -82 on December 24, 1983 |
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