Decatur Weather in March
Average highs run from 39°F on March 1 to 51°F on March 31, and lows from 21°F to 30°F. Normal precipitation for the month is 2.44 in over about 10 wet days.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 44°F
- Average low
- 25°F
- Precipitation
- 2.44 in
- Snowfall
- 8.1 in
- Record high
- 83°FMar 21, 2012
- Record low
- -11°FMar 1, 2014
- Chance of a freeze
- 100%
- Daylight
- 11 h 15 min to 12 h 41 min
- Cloud cover
- 68%
- Humidity
- 81%
- Dew point
- 30°F
- Wind
- 12.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Mar 1 | 39°F | 21°F | 64°F 2012 | -11°F 2014 | 38% | 22% |
| Mar 2 | 39°F | 21°F | 67°F 1992 | -4°F 1963 | 38% | 21% |
| Mar 3 | 39°F | 22°F | 72°F 1974 | -7°F 1943 | 37% | 21% |
| Mar 4 | 40°F | 22°F | 75°F 1983 | -5°F 2014 | 37% | 20% |
| Mar 5 | 40°F | 22°F | 75°F 1983 | -4°F 1944 | 37% | 20% |
| Mar 6 | 40°F | 22°F | 70°F 1951 | -2°F 2015 | 37% | 19% |
| Mar 7 | 41°F | 23°F | 74°F 2026 | -2°F 1999 | 36% | 19% |
| Mar 8 | 41°F | 23°F | 78°F 2000 | -10°F 1943 | 36% | 18% |
| Mar 9 | 42°F | 23°F | 79°F 2000 | -3°F 1978 | 36% | 18% |
| Mar 10 | 42°F | 23°F | 72°F 2026 | 0°F 1944 | 35% | 17% |
| Mar 11 | 42°F | 24°F | 70°F 1973 | 2°F 1896 | 35% | 17% |
| Mar 12 | 43°F | 24°F | 75°F 1990 | -1°F 1948 | 35% | 16% |
| Mar 13 | 43°F | 24°F | 78°F 1990 | 2°F 2014 | 34% | 16% |
| Mar 14 | 44°F | 25°F | 75°F 2007 | 1°F 1993 | 34% | 15% |
| Mar 15 | 44°F | 25°F | 79°F 2012 | 1°F 1993 | 34% | 15% |
| Mar 16 | 44°F | 25°F | 79°F 2012 | 3°F 1993 | 34% | 14% |
| Mar 17 | 45°F | 25°F | 77°F 2012 | 3°F 1949 | 33% | 14% |
| Mar 18 | 45°F | 26°F | 76°F 2012 | 7°F 1939 | 33% | 13% |
| Mar 19 | 46°F | 26°F | 73°F 1945 | 3°F 1934 | 33% | 13% |
| Mar 20 | 46°F | 26°F | 80°F 2012 | 9°F 1965 | 33% | 12% |
| Mar 21 | 46°F | 27°F | 83°F 2012 | 9°F 1965 | 33% | 12% |
| Mar 22 | 47°F | 27°F | 83°F 2012 | 8°F 2002 | 33% | 11% |
| Mar 23 | 47°F | 27°F | 81°F 2012 | 6°F 1940 | 33% | 11% |
| Mar 24 | 48°F | 28°F | 80°F 1939 | 3°F 1940 | 33% | 10% |
| Mar 25 | 48°F | 28°F | 77°F 1945 | 1°F 1940 | 33% | 10% |
| Mar 26 | 49°F | 28°F | 79°F 2007 | 5°F 1944 | 33% | 10% |
| Mar 27 | 49°F | 29°F | 81°F 1945 | -2°F 1965 | 33% | 9% |
| Mar 28 | 49°F | 29°F | 79°F 1945 | -11°F 1934 | 33% | 9% |
| Mar 29 | 50°F | 29°F | 79°F 1963 | 12°F 1934 | 33% | 9% |
| Mar 30 | 50°F | 30°F | 79°F 1943 | 3°F 1954 | 33% | 8% |
| Mar 31 | 51°F | 30°F | 80°F 1943 | 11°F 1969 | 34% | 8% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- March 1
- sunrise 7:19 AM, sunset 6:34 PM
- March 31
- sunrise 7:28 AM, sunset 8:09 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00202250 (Dowagiac 1 W), public domain. Records: NOAA GHCN-Daily, station USC00208184, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.