United States · 1991–2020

Best time to visit
Hebron.

September leads for comfortable weather in Hebron: typically 23.2°C by day, 10.1°C at night, with 88 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember
Typical high23.2°C
Typical low10.1°C
Rain in September88 mm
Comfort

September

September · August · July

77climate match
Beach

July

July · August · June

66climate match
Outdoors

September

September · May · October

76climate match

The weakest month is January, scoring 5 against September’s 77days reach only -2.5°C, 26° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan
5-2.5° / -11.5°
Feb
5-0.4° / -9.9°
Mar
56.3° / -4.2°
Apr
2813.6° / 1.6°
May
5820.3° / 7.9°
Jun
7325.8° / 13.5°
Jul
7427.7° / 15.6°
Aug
7526.7° / 14.3°
Sep
7723.2° / 10.1°
Oct
4315.9° / 3.9°
Nov
97.6° / -2.1°
Dec
50.6° / -7.8°
Monthly climate evidence for Hebron — daylight is calculated from latitude, everything else is measured
MonthDayNightRainWet daysDaylightComfortCoverage
January-2.5°C-11.5°C41 mm6.49 h 205Strong coverage
February-0.4°C-9.9°C38 mm5.810 h 275Strong coverage
March6.3°C-4.2°C47 mm6.411 h 475Strong coverage
April13.6°C1.6°C90 mm9.313 h 2028Strong coverage
May20.3°C7.9°C106 mm10.714 h 3758Strong coverage
June25.8°C13.5°C126 mm9.315 h 2073Strong coverage
July27.7°C15.6°C96 mm7.515 h 0374Strong coverage
August26.7°C14.3°C109 mm7.813 h 5675Strong coverage
September23.2°C10.1°C88 mm7.512 h 2677Strong coverage
October15.9°C3.9°C76 mm8.210 h 5843Strong coverage
November7.6°C-2.1°C57 mm6.29 h 409Strong coverage
December0.6°C-7.8°C44 mm6.59 h 025Strong coverage

What has changed

Hebron runs -0.5°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan
+0.3
Feb
-0.7
Mar
+0.3
Apr
-1.8
May
-1.3
Jun
-0.8
Jul
-1.1
Aug
-0.9
Sep
+0.3
Oct
-0.7
Nov
-0.6
Dec
+1.5
September daytime highs, 20112025. Last recorded: 24.6°C.
Records at WHITEWATER WWTP, 1949–2026
MonthRecord highRecord lowWettest dayWettest / driest monthYears
January15.6°C25 Jan 1950-38.3°C30 Jan 195142 mm20 Jan 1988103 mm2005 · driest 3 mm in 202577
February21.7°C28 Feb 2024-32.8°C3 Feb 199643 mm9 Feb 2001100 mm2008 · driest 0 mm in 198777
March28.3°C22 Mar 2012-28.9°C1 Mar 196255 mm25 Mar 2009144 mm2024 · driest 4 mm in 199677
April32.2°C22 Apr 1980-17.8°C7 Apr 198273 mm23 Apr 1999252 mm2026 · driest 21 mm in 200377
May35.0°C28 May 2018-8.3°C9 May 1966135 mm13 May 2014227 mm2004 · driest 15 mm in 202677
June37.8°C19 Jun 1953-3.3°C7 Jun 1998105 mm13 Jun 1950276 mm2008 · driest 4 mm in 198777
July38.9°C7 Jul 20124.4°C1 Jul 1965104 mm22 Jul 1982240 mm2010 · driest 18 mm in 202677
August38.3°C31 Aug 1953-0.6°C22 Aug 1997125 mm11 Aug 2025322 mm2007 · driest 6 mm in 196975
September37.8°C2 Sep 1953-3.3°C27 Sep 1991105 mm9 Sep 1985278 mm1961 · driest 2 mm in 197975
October31.7°C1 Oct 1971-10.6°C30 Oct 1988102 mm23 Oct 1959225 mm1959 · driest 3 mm in 195277
November25.6°C1 Nov 1950-23.3°C25 Nov 195086 mm6 Nov 2005165 mm1985 · driest 5 mm in 200776
December18.9°C4 Dec 2012-31.7°C25 Dec 200048 mm15 Dec 1971128 mm2015 · driest 5 mm in 197576
Typical days per month at WHITEWATER WWTP, 1991–2020
MonthDays 25°C+Days 30°C+Frost nightsHeavy rain (10 mm+)Snow days
January003015
February002714
March<102412
April2<1123<1
May82230
June186<140
July269030
August225030
September123<130
October3<182<1
November00202<1
December002814
How often, not how much — every day in WHITEWATER WWTP’s record sorted by what it was actually like, rather than averaged
MonthWarm & dry daysWet daysWashoutsWeek with 3+ wet daysDaytime mean has ranged
January0%18%3%14%-5.5–1.0°C
February0%18%3%15%-4.0–3.9°C
March3%22%6%22%3.4–9.8°C
April16%30%10%35%11.1–17.3°C
May43%31%9%37%18.4–24.2°C
June67%29%12%33%24.5–28.4°C
July74%25%11%26%26.5–30.5°C
August74%25%11%24%25.5–29.5°C
September60%24%9%28%21.9–25.8°C
October26%24%7%27%14.1–19.3°C
November4%22%7%19%4.5–11.2°C
December0%21%4%19%-3.5–3.9°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1950Each stripe is one year’s mean temperature against the 70-year average. Warmest: 1953. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity
GeoNames 5255948
NOAA station
USC00479190 · WHITEWATER WWTP
Station distance
8.7 km from the place centre
Climate period
1991–2020
Minimum month coverage
29 usable years
Daylight
Calculated from latitude 42.93°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from WHITEWATER WWTP is what differs

WhitewaterRichmondAdamsCold SpringHeart PrairieLa Grange