United States · 1991–2020

Best time to visit
Armstrong.

September leads for comfortable weather in Armstrong: typically 24°C by day, 6.9°C at night, with 17 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24°C

Typical low6.9°C

Rain in September17 mm

Comfort

September

September · June · July

85climate match

Beach

July

July · August · September

69climate match

Outdoors

June

June · May · September

86climate match

The weakest month is January, scoring 5 against September’s 85 — days reach only 2.9°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

52.9° / -3.4°

Feb

55.4° / -2.7°

Mar

169.6° / -0.4°

Apr

3613.7° / 2°

May

6118.9° / 5.6°

Jun

7922.3° / 8.1°

Jul

7628.7° / 10.3°

Aug

7429.4° / 10.2°

Sep

8524° / 6.9°

Oct

4515.8° / 2.5°

Nov

57.3° / -0.7°

Dec

52.5° / -3.7°

Monthly climate evidence for Armstrong — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.9°C	-3.4°C	66 mm	11.3	8 h 55	5	Strong coverage
February	5.4°C	-2.7°C	49 mm	8.9	10 h 13	5	Strong coverage
March	9.6°C	-0.4°C	55 mm	10	11 h 45	16	Strong coverage
April	13.7°C	2°C	48 mm	8.7	13 h 30	36	Strong coverage
May	18.9°C	5.6°C	45 mm	7.6	15 h 00	61	Strong coverage
June	22.3°C	8.1°C	31 mm	6.2	15 h 50	79	Strong coverage
July	28.7°C	10.3°C	11 mm	2.3	15 h 30	76	Strong coverage
August	29.4°C	10.2°C	12 mm	2.5	14 h 12	74	Strong coverage
September	24°C	6.9°C	17 mm	3.5	12 h 29	85	Strong coverage
October	15.8°C	2.5°C	45 mm	7.1	10 h 48	45	Strong coverage
November	7.3°C	-0.7°C	69 mm	11.1	9 h 18	5	Strong coverage
December	2.5°C	-3.7°C	72 mm	11.8	8 h 34	5	Strong coverage

What has changed

Armstrong runs +1.6°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

+1.7

Feb

-0.1

Mar

+1.3

Apr

+1.1

May

+1.9

Jun

+1.5

Jul

+2.5

Aug

+2.6

Sep

+2.7

Oct

+0.9

Nov

+1.4

Dec

+1.3

September daytime highs, 2011–2025. Last recorded: 28.5°C.

Records at PULLMAN 2 NW, 1940–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	15.0°C27 Jan 2015	-33.9°C26 Jan 1957	33 mm3 Jan 2007	219 mm1953 · driest 10 mm in 1977	85
February	18.9°C25 Feb 1986	-31.1°C2 Feb 1996	34 mm8 Feb 1996	155 mm1961 · driest 3 mm in 2005	85
March	25.0°C27 Mar 2025	-21.1°C4 Mar 2019	47 mm31 Mar 1971	131 mm2017 · driest 11 mm in 1992	83
April	31.1°C30 Apr 1987	-10.6°C19 Apr 1966	45 mm24 Apr 1996	128 mm1958 · driest 4 mm in 1956	85
May	36.1°C24 May 2001	-6.1°C8 May 2002	34 mm8 May 1956	135 mm1948 · driest 4 mm in 1947	84
June	41.1°C30 Jun 2021	-1.1°C4 Jun 1962	37 mm16 Jun 1963	107 mm2022 · driest 3 mm in 2025	83
July	40.0°C18 Jul 1960	0.0°C31 Jul 1945	20 mm30 Jul 1964	44 mm1983 · driest 0 mm in 1960	84
August	43.3°C4 Aug 1961	-1.1°C21 Aug 1945	62 mm10 Aug 1952	97 mm1989 · driest 0 mm in 2011	84
September	39.4°C1 Sep 2022	-6.7°C29 Sep 1983	41 mm16 Sep 1947	108 mm1947 · driest 0 mm in 1987	83
October	32.2°C2 Oct 2008	-13.9°C31 Oct 2002	43 mm27 Oct 1994	144 mm2016 · driest 0 mm in 1987	84
November	21.7°C13 Nov 1999	-25.6°C15 Nov 1955	49 mm1 Nov 1994	165 mm1958 · driest 9 mm in 2019	85
December	17.2°C2 Dec 2021	-35.6°C30 Dec 1968	42 mm28 Dec 1945	157 mm1964 · driest 16 mm in 1985	85

Typical days per month at PULLMAN 2 NW, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	23	2	5
February	0	0	20	1	3
March	0	0	17	1	2
April	<1	0	9	1	<1
May	5	<1	3	1	<1
June	10	2	0	<1	0
July	25	14	0	<1	0
August	26	16	0	<1	0
September	14	5	1	<1	0
October	2	<1	8	1	<1
November	0	0	16	2	2
December	0	0	25	2	5

How often, not how much — every day in PULLMAN 2 NW’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	0%	37%	6%	48%	-1.3–4.7°C
February	0%	34%	5%	45%	2.2–7.7°C
March	1%	33%	4%	41%	6.2–11.6°C
April	11%	27%	3%	30%	11.0–16.0°C
May	34%	24%	3%	28%	15.5–21.2°C
June	58%	20%	3%	18%	19.3–24.5°C
July	89%	8%	1%	4%	25.6–31.3°C
August	87%	10%	1%	7%	25.0–30.9°C
September	66%	14%	2%	12%	19.4–26.3°C
October	22%	22%	4%	29%	13.1–18.6°C
November	<1%	38%	7%	54%	4.2–9.6°C
December	0%	39%	7%	51%	0.0–4.9°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.

1941Each stripe is one year’s mean temperature against the 79-year average. Warmest: 2015. Coolest: 1985.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5785871
NOAA station: USC00456789 · PULLMAN 2 NW
Station distance: 3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 46.76°, 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 PULLMAN 2 NW is what differs

Pullman→Colfax→Albion→Almota→Elberton→Ewartsville→

Or put two places side by side: Armstrong vs Pullman

Best time to visitArmstrong.