United States · 1991–2020

Best time to visit
Plum Grove.

April leads for comfortable weather in Plum Grove: typically 25.1°C by day, 12.3°C at night, with 94 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortApril

Typical high25.1°C

Typical low12.3°C

Rain in April94 mm

Comfort

April

April · October · March

81climate match

Beach

September

September · June · July

75climate match

Outdoors

November

November · March · February

86climate match

The weakest month is January, scoring 39 against April’s 81 — days reach only 14.9°C, 9° below the 24°C the score treats as ideal, and nights drop to 2.2°C.

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

3914.9° / 2.2°

Feb

5017° / 4.3°

Mar

6721° / 8.3°

Apr

8125.1° / 12.3°

May

6429° / 17.3°

Jun

4932.9° / 21.5°

Jul

4635.5° / 23.2°

Aug

4235.9° / 23.2°

Sep

5732.4° / 19.3°

Oct

7326.7° / 13.4°

Nov

6720.3° / 7.4°

Dec

4315.7° / 3.2°

Monthly climate evidence for Plum Grove — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	14.9°C	2.2°C	71 mm	6.1	10 h 15	39	Strong coverage
February	17°C	4.3°C	70 mm	5.6	10 h 59	50	Strong coverage
March	21°C	8.3°C	91 mm	6.6	11 h 53	67	Strong coverage
April	25.1°C	12.3°C	94 mm	6	12 h 55	81	Strong coverage
May	29°C	17.3°C	116 mm	7.4	13 h 47	64	Strong coverage
June	32.9°C	21.5°C	92 mm	5.7	14 h 15	49	Strong coverage
July	35.5°C	23.2°C	42 mm	3.6	14 h 04	46	Strong coverage
August	35.9°C	23.2°C	55 mm	3.8	13 h 20	42	Strong coverage
September	32.4°C	19.3°C	80 mm	4.9	12 h 20	57	Strong coverage
October	26.7°C	13.4°C	124 mm	5.9	11 h 20	73	Strong coverage
November	20.3°C	7.4°C	69 mm	5.8	10 h 28	67	Strong coverage
December	15.7°C	3.2°C	76 mm	5.8	10 h 03	43	Strong coverage

What has changed

Plum Grove runs +1.2°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

+1.6

Feb

+1.1

Mar

+1.4

Apr

+0.1

May

+0.5

Jun

+1.1

Jul

+0.8

Aug

+1.5

Sep

+2.1

Oct

+1.3

Nov

+0.8

Dec

+1.8

April daytime highs, 2011–2025. Last recorded: 26.3°C.

Records at HILLSBORO, 1903–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	31.7°C23 Jan 1943	-18.3°C18 Jan 1930	111 mm17 Jan 1926	201 mm1926 · driest 0 mm in 1909	119
February	36.1°C25 Feb 1918	-18.3°C16 Feb 2021	79 mm18 Feb 1938	203 mm1997 · driest 1 mm in 1999	121
March	37.8°C30 Mar 1913	-11.1°C11 Mar 1948	159 mm30 Mar 2007	306 mm2007 · driest 0 mm in 1925	118
April	38.3°C11 Apr 1963	-3.3°C3 Apr 1987	133 mm4 Apr 1922	333 mm1942 · driest 0 mm in 1948	119
May	40.0°C27 May 1928	2.2°C4 May 2013	141 mm2 May 1944	368 mm2015 · driest 9 mm in 1934	119
June	42.8°C27 Jun 2012	8.9°C1 Jun 1992	201 mm15 Jun 1935	363 mm1981 · driest 0 mm in 1911	123
July	45.0°C10 Jul 1917	12.8°C13 Jul 1947	165 mm4 Jul 1976	260 mm1976 · driest 0 mm in 2011	122
August	44.4°C21 Aug 2023	11.7°C28 Aug 1906	178 mm18 Aug 1915	299 mm1915 · driest 0 mm in 2002	119
September	43.3°C1 Sep 1939	3.3°C27 Sep 1942	287 mm27 Sep 1936	429 mm1936 · driest 0 mm in 1997	119
October	39.4°C1 Oct 1938	-6.1°C31 Oct 1993	213 mm24 Oct 2015	338 mm2018 · driest 0 mm in 1963	117
November	33.9°C3 Nov 2017	-10.0°C30 Nov 1976	122 mm8 Nov 1918	281 mm1940 · driest 0 mm in 1911	117
December	32.2°C24 Dec 1955	-21.1°C23 Dec 1989	150 mm21 Dec 1997	302 mm1913 · driest 0 mm in 1917	119

Typical days per month at HILLSBORO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	1	0	12	2
February	3	<1	7	2
March	8	<1	3	3
April	17	3	<1	3
May	27	13	0	4
June	29	26	0	3
July	30	30	0	1
August	30	29	0	1
September	28	23	0	3
October	21	9	<1	3
November	7	<1	4	2
December	2	<1	10	2

How often, not how much — every day in HILLSBORO’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	24%	17%	6%	15%	11.0–18.1°C
February	34%	20%	8%	17%	13.1–20.6°C
March	55%	19%	8%	15%	17.6–24.8°C
April	73%	20%	10%	18%	23.7–27.7°C
May	76%	24%	12%	25%	27.3–31.1°C
June	83%	18%	9%	16%	31.3–35.6°C
July	88%	12%	5%	8%	33.5–38.2°C
August	88%	12%	4%	9%	33.7–38.3°C
September	84%	16%	7%	14%	30.2–35.2°C
October	80%	16%	8%	15%	24.7–29.7°C
November	53%	17%	7%	14%	17.6–23.1°C
December	27%	17%	7%	17%	13.0–18.5°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.

1904Each stripe is one year’s mean temperature against the 107-year average. Warmest: 1911. Coolest: 1976.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4719781
NOAA station: USC00414182 · HILLSBORO
Station distance: 22.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 32.20°, 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 HILLSBORO is what differs

Hillsboro→West→Itasca→Milford→Abbott→Bynum→

Or put two places side by side: Plum Grove vs Hillsboro

Best time to visitPlum Grove.