United States · 1991–2020

Best time to visit
Archer.

September leads for comfortable weather in Archer: typically 26°C by day, 9.5°C at night, with 41 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26°C

Typical low9.5°C

Rain in September41 mm

Comfort

September

September · June · August

81climate match

Beach

July

July · August · June

72climate match

Outdoors

October

October · May · September

82climate match

The weakest month is December, scoring 6 against September’s 81 — days reach only 8.3°C, 16° below the 24°C the score treats as ideal, and nights drop to -8.3°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

88.7° / -8.1°

Feb

109.3° / -7.5°

Mar

3013.5° / -2.9°

Apr

4316.6° / 0.7°

May

6821.4° / 6.3°

Jun

7627.9° / 11.5°

Jul

7131.1° / 15.3°

Aug

7330° / 14.3°

Sep

8126° / 9.5°

Oct

6019.2° / 2.5°

Nov

3013.1° / -3.4°

Dec

68.3° / -8.3°

Monthly climate evidence for Archer — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	8.7°C	-8.1°C	16 mm	3.5	9 h 40	8	Strong coverage
February	9.3°C	-7.5°C	19 mm	3.9	10 h 39	10	Strong coverage
March	13.5°C	-2.9°C	46 mm	5.2	11 h 49	30	Strong coverage
April	16.6°C	0.7°C	62 mm	6.7	13 h 11	43	Strong coverage
May	21.4°C	6.3°C	63 mm	7.6	14 h 19	68	Strong coverage
June	27.9°C	11.5°C	46 mm	6.3	14 h 57	76	Strong coverage
July	31.1°C	15.3°C	43 mm	7.1	14 h 42	71	Strong coverage
August	30°C	14.3°C	49 mm	7.3	13 h 43	73	Strong coverage
September	26°C	9.5°C	41 mm	5.1	12 h 24	81	Strong coverage
October	19.2°C	2.5°C	38 mm	4.8	11 h 05	60	Strong coverage
November	13.1°C	-3.4°C	24 mm	3.6	9 h 57	30	Strong coverage
December	8.3°C	-8.3°C	18 mm	3.5	9 h 23	6	Strong coverage

What has changed

Archer 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

+0.2

Feb

-1.0

Mar

+1.6

Apr

-0.3

May

-1.0

Jun

+1.3

Jul

+0.2

Aug

+0.8

Sep

+1.8

Oct

+0.1

Nov

+1.4

Dec

+1.3

September daytime highs, 2011–2025. Last recorded: 25.8°C.

Records at KASSLER, 1918–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	24.4°C3 Jan 1997	-35.6°C17 Jan 1930	35 mm9 Jan 1939	56 mm1948 · driest 0 mm in 1952	108
February	26.1°C11 Feb 2017	-33.9°C1 Feb 1951	31 mm4 Feb 2024	72 mm1934 · driest 0 mm in 1991	108
March	31.7°C22 Mar 2026	-28.9°C2 Mar 1943	129 mm20 Mar 2003	191 mm2003 · driest 2 mm in 2012	108
April	31.1°C22 Apr 1989	-23.3°C2 Apr 1975	71 mm24 Apr 1948	232 mm1942 · driest 1 mm in 1963	108
May	36.1°C4 May 1932	-8.3°C2 May 1954	84 mm6 May 1973	245 mm1969 · driest 6 mm in 1974	108
June	40.6°C27 Jun 1994	-1.1°C2 Jun 1919	89 mm4 Jun 1921	147 mm1949 · driest 0 mm in 1980	108
July	40.6°C30 Jul 1995	2.8°C13 Jul 1987	78 mm21 Jul 1976	128 mm1976 · driest 10 mm in 2005	108
August	38.3°C8 Aug 2025	4.4°C18 Aug 1987	63 mm5 Aug 1999	124 mm1984 · driest 1 mm in 1924	106
September	37.2°C18 Sep 1930	-7.8°C30 Sep 1985	91 mm10 Sep 1933	129 mm1961 · driest 0 mm in 1956	107
October	32.2°C1 Oct 1980	-22.2°C30 Oct 1993	54 mm15 Oct 1947	165 mm1969 · driest 0 mm in 1933	107
November	27.8°C9 Nov 2006	-25.6°C26 Nov 1952	52 mm1 Nov 1972	113 mm1946 · driest 0 mm in 1949	108
December	25.6°C23 Dec 2025	-35.0°C22 Dec 1990	48 mm2 Dec 1933	77 mm2006 · driest 0 mm in 1991	107

Typical days per month at KASSLER, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	<1	4
February	0	0	25	<1	4
March	<1	0	22	1	4
April	3	0	13	2	3
May	10	2	3	2	<1
June	22	12	0	1	0
July	29	21	0	1	0
August	27	18	0	2	0
September	20	9	<1	2	<1
October	7	<1	10	1	1
November	1	0	22	<1	3
December	0	0	28	<1	4

How often, not how much — every day in KASSLER’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	2%	11%	<1%	5%	4.7–11.4°C
February	6%	14%	2%	9%	6.1–13.6°C
March	16%	19%	4%	15%	9.8–16.4°C
April	39%	22%	7%	20%	14.3–20.2°C
May	61%	24%	7%	25%	19.5–24.1°C
June	78%	20%	4%	19%	24.8–30.2°C
July	78%	22%	4%	24%	29.4–32.6°C
August	78%	22%	4%	19%	28.3–31.3°C
September	79%	15%	4%	11%	24.0–28.5°C
October	56%	14%	4%	9%	17.1–22.9°C
November	19%	13%	3%	6%	9.8–16.3°C
December	4%	11%	1%	6%	5.9–11.7°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.

1919Each stripe is one year’s mean temperature against the 103-year average. Warmest: 1954. Coolest: 1987.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5412077
NOAA station: USC00054452 · KASSLER
Station distance: 5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 39.53°, 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 KASSLER is what differs

Roxborough Park→Acequia→Deermont→Homewood Park→Kassler→Phillipsburg→

Or put two places side by side: Archer vs Roxborough Park

Best time to visitArcher.