United States · 1991–2020

Best time to visit
Boonesboro.

September leads for comfortable weather in Boonesboro: typically 26.2°C by day, 13.6°C at night, with 104 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.2°C

Typical low13.6°C

Rain in September104 mm

Comfort

September

September · May · June

77climate match

Beach

July

July · August · June

73climate match

Outdoors

October

October · April · May

80climate match

The weakest month is January, scoring 5 against September’s 77 — days reach only 3.3°C, 21° 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

53.3° / -7.3°

Feb

56.2° / -5°

Mar

2612.5° / 0.5°

Apr

5018.6° / 6.4°

May

7623.8° / 12.5°

Jun

6428.5° / 17.7°

Jul

5430.8° / 19.8°

Aug

6030.2° / 18.6°

Sep

7726.2° / 13.6°

Oct

6019.9° / 6.9°

Nov

2812.1° / 0.8°

Dec

55.8° / -4.5°

Monthly climate evidence for Boonesboro — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	3.3°C	-7.3°C	51 mm	5.5	9 h 42	5	Strong coverage
February	6.2°C	-5°C	53 mm	5.2	10 h 40	5	Strong coverage
March	12.5°C	0.5°C	75 mm	7.6	11 h 50	26	Strong coverage
April	18.6°C	6.4°C	112 mm	9.3	13 h 10	50	Strong coverage
May	23.8°C	12.5°C	125 mm	10.1	14 h 17	76	Strong coverage
June	28.5°C	17.7°C	116 mm	8.8	14 h 54	64	Strong coverage
July	30.8°C	19.8°C	111 mm	7.4	14 h 39	54	Strong coverage
August	30.2°C	18.6°C	105 mm	7	13 h 41	60	Strong coverage
September	26.2°C	13.6°C	104 mm	6.7	12 h 24	77	Strong coverage
October	19.9°C	6.9°C	89 mm	7.1	11 h 06	60	Strong coverage
November	12.1°C	0.8°C	69 mm	6.1	9 h 59	28	Strong coverage
December	5.8°C	-4.5°C	48 mm	5.7	9 h 26	5	Strong coverage

What has changed

Boonesboro runs -0.4°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

0.0

Feb

+0.3

Mar

-0.3

Apr

-0.9

May

-0.4

Jun

-0.2

Jul

-1.4

Aug

-1.5

Sep

+0.1

Oct

-1.1

Nov

-0.7

Dec

+1.4

September daytime highs, 2011–2025. Last recorded: 28.1°C.

Records at NEW FRANKLIN 1W, 1956–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.9°C21 Jan 1957	-31.1°C12 Jan 1974	73 mm30 Jan 2013	163 mm2005 · driest 0 mm in 1966	68
February	27.2°C27 Feb 2024	-29.4°C9 Feb 1979	95 mm21 Feb 1997	145 mm1997 · driest 0 mm in 2024	67
March	29.4°C30 Mar 1986	-27.2°C5 Mar 1960	70 mm31 Mar 1998	221 mm1973 · driest 11 mm in 1970	67
April	33.3°C21 Apr 1987	-7.8°C3 Apr 1975	97 mm25 Apr 2010	282 mm1994 · driest 7 mm in 1988	67
May	34.4°C12 May 1956	-1.7°C3 May 1976	92 mm16 May 1990	355 mm1995 · driest 9 mm in 2022	67
June	40.0°C26 Jun 1988	5.6°C1 Jun 1966	102 mm3 Jun 1965	269 mm1981 · driest 3 mm in 1988	68
July	42.8°C30 Jul 1980	8.9°C31 Jul 1971	151 mm3 Jul 2016	331 mm2010 · driest 8 mm in 2022	69
August	41.1°C3 Aug 2011	6.1°C28 Aug 1986	122 mm18 Aug 2002	256 mm1982 · driest 12 mm in 2012	67
September	38.3°C22 Sep 1956	-0.6°C24 Sep 1989	134 mm13 Sep 1961	327 mm1993 · driest 0 mm in 2022	67
October	34.4°C2 Oct 1976	-5.6°C20 Oct 2022	145 mm2 Oct 2014	286 mm2014 · driest 0 mm in 1964	67
November	28.3°C8 Nov 1980	-20.6°C8 Nov 1991	88 mm1 Nov 1977	212 mm1992 · driest 3 mm in 1989	65
December	22.8°C4 Dec 2012	-30.0°C23 Dec 1989	56 mm28 Dec 1968	153 mm1982 · driest 6 mm in 2017	66

Typical days per month at NEW FRANKLIN 1W, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	1	2
February	0	0	23	2	2
March	2	0	15	3	<1
April	6	<1	4	4	<1
May	15	3	0	4	0
June	25	12	0	4	0
July	29	19	0	3	0
August	29	17	0	3	0
September	19	8	0	3	0
October	7	<1	3	3	0
November	<1	0	14	2	<1
December	0	0	25	2	1

How often, not how much — every day in NEW FRANKLIN 1W’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	<1%	16%	4%	12%	0.3–7.1°C
February	4%	17%	5%	15%	1.7–10.0°C
March	16%	24%	8%	25%	9.3–16.2°C
April	37%	29%	11%	36%	16.4–21.7°C
May	59%	31%	13%	39%	22.2–26.9°C
June	72%	27%	11%	30%	27.2–31.0°C
July	77%	23%	10%	23%	29.6–33.0°C
August	78%	21%	9%	21%	28.5–33.0°C
September	73%	22%	10%	22%	24.5–28.7°C
October	46%	22%	10%	23%	18.1–22.3°C
November	13%	20%	7%	16%	9.1–15.7°C
December	1%	18%	5%	12%	3.0–8.9°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.

1957Each stripe is one year’s mean temperature against the 60-year average. Warmest: 2012. Coolest: 2014.2023

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4377949
NOAA station: USC00236012 · NEW FRANKLIN 1W
Station distance: 10 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 39.08°, 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 NEW FRANKLIN 1W is what differs

Fayette→New Franklin→Franklin→Arrow Rock→Burton→Estill→

Or put two places side by side: Boonesboro vs Fayette

Best time to visitBoonesboro.