Illinois · county areal climate 1951–2025

Randolph County, IL

A 43.0" / 56.7°F normal · 2025 ran 85% of normal precipitation.
2026 so far · through Jul 25: This area is at 82% (21.93") of the 1996–2025 to-date normal — the 28th driest start of 76 years. Temperature +1.9°F vs normal. U.S. year-to-date →

Normal (1996–2025)

43.0in
annual precipitation · 56.7°F

2025 vs Normal

85%
36.8" · 57.1°F (+0.4 vs normal)

Wettest Year

58.3in
2015

Driest Year

24.4in
1953

Biggest Rain Day

4.28in
Aug 17 · 1959

Warmest Year

59.2°F
2012

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

32°
J
37°
F
47°
M
57°
A
66°
M
75°
J
78°
J
76°
A
70°
S
58°
O
46°
N
37°
D
—— normal temperature (°F) · ▮ normal precipitation (in) · 1996–2025
Areal nClimGrid averages (NOAA/NCEI) over the whole area — an average across the region, not a single station. Separate from the station records.

Nearby

← All Illinois countiesU.S. overview
DriestSince · browse by state · precipitation & snowfall records · NOAA/RCC-ACIS ThreadEx gauge record · part of Weather Trader · supported by Substack Subscribers
© 2026 Weather Trader · All rights reserved