Lake Santee, IN climate
Lake Santee has chilly winters and warm summers. A typical July afternoon reaches 84°, a January night drops to 21°, and about 13 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Lake Santee feels like
Winter
Spring
Summer
Fall
Lake Santee 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 | 36° | 21° | 3.4" | 4.4" | 11 | 8 | 20° – 39° |
| February | 41° | 24° | 2.6" | 3.8" | 9 | 6 | 20° – 42° |
| March | 51° | 32° | 3.7" | 1.7" | 11 | 2 | 34° – 55° |
| April | 64° | 41° | 4.6" | 0 | 13 | 0 | 46° – 59° |
| May | 74° | 51° | 5.1" | 0 | 13 | 0 | 56° – 70° |
| June | 81° | 60° | 5.0" | 0 | 11 | 0 | 66° – 74° |
| July | 84° | 63° | 4.4" | 0 | 10 | 0 | 69° – 80° |
| August | 83° | 62° | 3.5" | 0 | 8 | 0 | 68° – 78° |
| September | 78° | 54° | 3.2" | 0 | 8 | 0 | 62° – 72° |
| October | 66° | 43° | 3.4" | 0.1" | 8 | 0 | 51° – 60° |
| November | 52° | 33° | 3.4" | 0.2" | 9 | 0 | 36° – 49° |
| December | 41° | 26° | 3.4" | 3.1" | 11 | 5 | 21° – 43° |
| Year | 63° | 43° | 45.6" | 13.3" | 122 | 21 |
“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 Lake Santee
Lake Santee gets 46 inches of rain and melted snow a year. May is the wettest month and February the driest. Rain or snow falls on about 122 days a year. Snow covers the ground about 21 days of the year.
About 194 frost-free days a year
In half of years the last 32° night comes by April 15 and the first one by October 26. That leaves about 194 frost-free days for gardens, longer than 68% of U.S. towns.
Heating and cooling a home in Lake Santee
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Lake Santee, 82% of that work is heating and 18% is cooling, so the furnace matters far more than the air conditioner.
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.
How Lake Santee 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 Lake Santee averaged 0.8° warmer than the 1900s. The biggest change is in December (+1.8°). The shift is smaller than in 85% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Lake Santee’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 21° to 43°. June is the most reliable, staying within 8°.
Common questions about Lake Santee’s climate
What is the coldest month in Lake Santee?
January, with a typical high of 36° and a low of 21°.
What is the hottest month in Lake Santee?
July, with a typical high of 84° and a low of 63°. About 16 days a year reach 90°.
How much snow does Lake Santee get?
About 13 inches in a normal winter, most of it in January.
When is the first frost in Lake Santee?
In half of years the first 32° night comes by October 26, and the last spring frost by April 15.
What is the rainiest month in Lake Santee?
May, with 5.1 inches of rain and melted snow. The year totals 46 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Lake Santee itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Greensburg, IN (10 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.