United States · 1991–2020

Best time to visit
Fort Washington.

September leads for comfortable weather in Fort Washington: typically 24.9°C by day, 14.1°C at night, with 124 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24.9°C

Typical low14.1°C

Rain in September124 mm

Comfort

September

September · May · June

78climate match

Beach

August

August · July · June

78climate match

Outdoors

October

October · May · April

77climate match

The weakest month is January, scoring 5 against September’s 78 — days reach only 4.1°C, 20° 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

54.1° / -4°

Feb

56° / -3.2°

Mar

1410.7° / 0.6°

Apr

5017.5° / 6°

May

7622.6° / 11°

Jun

7227.6° / 16.6°

Jul

5629.9° / 19.2°

Aug

6529° / 18.3°

Sep

7824.9° / 14.1°

Oct

5718.4° / 7.7°

Nov

3312.9° / 3.4°

Dec

56.6° / -1.6°

Monthly climate evidence for Fort Washington — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4.1°C	-4°C	83 mm	7.9	9 h 36	5	Good coverage
February	6°C	-3.2°C	56 mm	7	10 h 37	5	Good coverage
March	10.7°C	0.6°C	110 mm	9.1	11 h 49	14	Good coverage
April	17.5°C	6°C	84 mm	9	13 h 13	50	Good coverage
May	22.6°C	11°C	83 mm	8.7	14 h 23	76	Good coverage
June	27.6°C	16.6°C	98 mm	8.1	15 h 01	72	Good coverage
July	29.9°C	19.2°C	128 mm	8	14 h 46	56	Good coverage
August	29°C	18.3°C	95 mm	7	13 h 45	65	Good coverage
September	24.9°C	14.1°C	124 mm	7.8	12 h 24	78	Good coverage
October	18.4°C	7.7°C	93 mm	6.8	11 h 04	57	Good coverage
November	12.9°C	3.4°C	73 mm	7.1	9 h 54	33	Good coverage
December	6.6°C	-1.6°C	100 mm	7.5	9 h 20	5	Good coverage

Records at WILLOW GROVE NAS, 1945–2011
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.8°C26 Jan 1950	-22.8°C17 Jan 1982	78 mm24 Jan 1979	297 mm1979 · driest 0 mm in 2009	66
February	23.9°C24 Feb 1985	-21.1°C12 Feb 1979	48 mm13 Feb 1966	172 mm1979 · driest 6 mm in 2007	67
March	31.1°C30 Mar 1998	-15.0°C10 Mar 1984	69 mm20 Mar 1958	215 mm1994 · driest 2 mm in 2009	67
April	35.6°C17 Apr 2002	-7.8°C7 Apr 1982	75 mm2 Apr 2005	247 mm1983 · driest 0 mm in 2007	66
May	36.1°C19 May 1996	-1.7°C9 May 1947	71 mm11 May 1981	241 mm1979 · driest 0 mm in 2009	66
June	37.2°C22 Jun 1988	3.9°C11 Jun 1972	218 mm16 Jun 2001	373 mm2001 · driest 14 mm in 1999	66
July	38.9°C21 Jul 1957	9.4°C4 Jul 1986	115 mm26 Jul 1989	302 mm1989 · driest 0 mm in 2008	66
August	40.0°C9 Aug 2001	6.1°C29 Aug 1982	116 mm17 Aug 1993	355 mm1955 · driest 0 mm in 2008	66
September	38.9°C2 Sep 1953	1.1°C25 Sep 1963	190 mm16 Sep 1999	354 mm1999 · driest 0 mm in 2008	66
October	31.7°C8 Oct 2007	-3.9°C21 Oct 1952	133 mm25 Oct 1980	209 mm1995 · driest 0 mm in 2008	66
November	28.3°C1 Nov 1950	-10.6°C30 Nov 1976	105 mm8 Nov 1972	274 mm1986 · driest 2 mm in 1998	66
December	25.6°C5 Dec 2001	-18.9°C25 Dec 1980	91 mm11 Dec 1992	264 mm1996 · driest 0 mm in 2008	65

Typical days per month at WILLOW GROVE NAS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	24	3	3
February	0	0	21	2	3
March	<1	0	15	4	2
April	3	<1	3	3	<1
May	10	4	<1	3	0
June	22	11	0	3	0
July	29	16	0	4	0
August	28	13	0	3	0
September	16	4	0	3	0
October	4	<1	<1	3	0
November	<1	0	8	2	<1
December	<1	0	20	3	2

How often, not how much — every day in WILLOW GROVE NAS’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%	27%	9%	31%	-0.4–7.0°C
February	<1%	27%	9%	28%	2.0–8.4°C
March	7%	29%	12%	35%	6.9–13.4°C
April	23%	31%	11%	38%	14.4–18.4°C
May	51%	32%	12%	40%	19.7–24.3°C
June	70%	28%	10%	29%	25.2–29.1°C
July	73%	27%	11%	29%	27.7–31.8°C
August	75%	25%	10%	24%	27.0–29.8°C
September	66%	24%	10%	25%	22.6–26.7°C
October	34%	21%	9%	20%	16.0–21.2°C
November	6%	27%	10%	28%	9.3–14.3°C
December	<1%	27%	10%	34%	2.3–8.6°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.

1946Each stripe is one year’s mean temperature against the 63-year average. Warmest: 2001. Coolest: 1978.2010

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5190089
NOAA station: USW00014793 · WILLOW GROVE NAS
Station distance: 8.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 40.14°, 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 WILLOW GROVE NAS is what differs

Abington→Willow Grove→Horsham→Montgomeryville→Glenside→Hatboro→

Or put two places side by side: Fort Washington vs Abington

Best time to visitFort Washington.