Weather on March 17
Rockford, IL
55 Years of Data
About This Date
March 17th in Rockford, IL typically brings chilly spring weather, with average highs around 45°F and lows near 28°F. Over 56 years of records, the warmest March 17th was in 2012 (70°F average), while the coldest was 2026 (14°F) — a 56°F range across recorded history. Precipitation has occurred on 34% of recorded March 17th dates, with snow falling 16% of the time (heaviest snowfall: 4"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for March 17th in Rockford, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026coldest | 21° | 7° | 14° | 0.05" | 0.3" |
| 2025 | 56° | 17° | 37° | — | — |
| 2024 | 39° | 28° | 34° | — | — |
| 2023 | 36° | 17° | 27° | 0.05" | — |
| 2022 | 68° | 40° | 54° | — | — |
| 2021 | 39° | 33° | 36° | 0.48" | — |
| 2020 | 47° | 31° | 39° | — | — |
| 2019 | 44° | 24° | 34° | — | — |
| 2018 | 51° | 28° | 40° | 0.38" | — |
| 2017 | 59° | 35° | 47° | 0.03" | — |
| 2016 | 57° | 36° | 46° | — | — |
| 2015 | 49° | 28° | 39° | — | — |
| 2014 | 38° | 14° | 26° | — | — |
| 2013 | 35° | 22° | 28° | — | — |
| 2012warmest | 82° | 57° | 70° | 0.13" | — |
| 2011 | 67° | 45° | 56° | — | — |
| 2010 | 64° | 30° | 47° | — | — |
| 2009 | 75° | 40° | 57° | — | — |
| 2008 | 40° | 29° | 34° | 0.15" | 0.2" |
| 2007 | 42° | 20° | 31° | — | — |
| 2006 | 39° | 25° | 32° | — | — |
| 2005 | 33° | 27° | 30° | 0.1" | 0.9" |
| 2004 | 40° | 27° | 33° | 0.36" | 1" |
| 2003 | 74° | 45° | 59° | — | — |
| 2002 | 43° | 29° | 36° | — | — |
| 2001 | 41° | 24° | 33° | 0.13" | 0.6" |
| 2000 | 39° | 22° | 30° | — | — |
| 1999 | 58° | 36° | 47° | — | — |
| 1998 | 38° | 31° | 34° | 0.74" | — |
| 1997 | 51° | 31° | 41° | — | — |
| 1996 | 36° | 25° | 30° | 0.23" | 0.6" |
| 1995 | 59° | 33° | 46° | — | — |
| 1994 | 37° | 21° | 29° | — | — |
| 1993 | 24° | 11° | 17° | — | — |
| 1992 | 48° | 30° | 39° | — | — |
| 1991 | 40° | 33° | 36° | 1.07" | — |
| 1990 | 46° | 34° | 40° | — | — |
| 1989 | 31° | 20° | 25° | 0.38" | 0.4" |
| 1988 | 40° | 31° | 35° | — | — |
| 1987 | 46° | 29° | 37° | — | — |
| 1986 | 50° | 32° | 41° | 0.23" | — |
| 1985 | 44° | 23° | 34° | — | — |
| 1984 | 30° | 26° | 28° | 0.79" | 4" |
| 1983 | 54° | 35° | 44° | — | — |
| 1982 | 40° | 34° | 37° | — | — |
| 1981 | 39° | 20° | 29° | — | — |
| 1980 | 37° | 26° | 32° | 0.05" | 0.2" |
| 1979 | 39° | 30° | 35° | 0.48" | — |
| 1978 | 31° | 15° | 23° | — | — |
| 1977 | 43° | 28° | 35° | 0.3" | — |
| 1976 | 37° | 11° | 24° | — | — |
| 1975 | 42° | 26° | 34° | — | — |
| 1974 | 34° | 29° | 31° | — | — |
| 1973 | 37° | 29° | 33° | — | — |
| 1972 | 50° | 31° | 40° | — | — |
| 1971 | 41° | 20° | 30° | — | — |
Rockford, IL Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Rockford, IL Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Rockford, IL Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Rockford, IL
Rockford, IL has no months that meet our "pleasant" threshold — every season has tradeoffs.