Harrison, IN climate
Harrison has chilly winters and warm summers, with plenty of rain. A typical July afternoon reaches 88°, a January night drops to 23°, and about 9 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Harrison feels like
Winter
Spring
Summer
Fall
Harrison weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 39° | 23° | 3.4" | 2.9" | 8 | 4 | 24° – 42° |
| February | 44° | 26° | 2.9" | 2.0" | 6 | 3 | 23° – 44° |
| March | 55° | 34° | 4.0" | 1.0" | 9 | 1 | 37° – 58° |
| April | 67° | 44° | 5.0" | 0 | 10 | 0 | 49° – 61° |
| May | 76° | 55° | 5.4" | 0 | 11 | 0 | 60° – 73° |
| June | 85° | 63° | 4.7" | 0 | 9 | 0 | 69° – 78° |
| July | 88° | 66° | 4.4" | 0 | 8 | 0 | 72° – 83° |
| August | 86° | 64° | 3.2" | 0 | 7 | 0 | 71° – 81° |
| September | 81° | 57° | 3.7" | 0 | 6 | 0 | 65° – 75° |
| October | 69° | 45° | 3.5" | 0.1" | 6 | 0 | 53° – 62° |
| November | 55° | 35° | 3.9" | 0.1" | 7 | 0 | 37° – 51° |
| December | 44° | 27° | 3.6" | 3.1" | 7 | 2 | 22° – 45° |
| Year | 66° | 45° | 47.6" | 9.2" | 92 | 10 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Harrison
Harrison gets 48 inches of rain and melted snow a year. May is the wettest month and February the driest. Rain or snow falls on about 92 days a year. Snow covers the ground about 10 days of the year.
About 197 frost-free days a year
In half of years the last 32° night comes by April 10 and the first one by October 25. That leaves about 197 frost-free days for gardens, longer than 70% of U.S. towns.
Heating and cooling a home in Harrison
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Harrison, 77% of that work is heating and 23% is cooling.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Harrison and its neighbors
Harrison borders 8 towns with climate data. January nights across them vary by 1.0°. Washington has the coldest January nights (22°) and Clay the hottest July afternoons (88°). Harrison’s January low is 23° and its July high 88°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Harrison compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Harrison averaged 1.0° warmer than the 1900s. The biggest change is in December (+1.9°). The shift is smaller than in 68% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Harrison’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 22° to 45°. June is the most reliable, staying within 9°.
Common questions about Harrison’s climate
What is the coldest month in Harrison?
January, with a typical high of 39° and a low of 23°.
What is the hottest month in Harrison?
July, with a typical high of 88° and a low of 66°. About 32 days a year reach 90°.
How much snow does Harrison get?
About 9 inches in a normal winter, most of it in December.
When is the first frost in Harrison?
In half of years the first 32° night comes by October 25, and the last spring frost by April 10.
What is the rainiest month in Harrison?
May, with 5.4 inches of rain and melted snow. The year totals 48 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Harrison itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Washington 1 W, IN (10 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.