United States · 1991–2020

Best time to visit
Graham.

July leads for comfortable weather in Graham: typically 24.4°C by day, 11.6°C at night, with 24 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high24.4°C

Typical low11.6°C

Rain in July24 mm

Comfort

July

July · August · September

92climate match

Beach

August

August · July · September

61climate match

Outdoors

September

September · June · July

90climate match

The weakest month is January, scoring 5 against July’s 92 — days reach only 8°C, 16° 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

58° / 1°

Feb

69° / 0.7°

Mar

1011.4° / 2.3°

Apr

2714.1° / 4.1°

May

5418° / 7.2°

Jun

7120.6° / 9.6°

Jul

9224.4° / 11.6°

Aug

9124.8° / 11.7°

Sep

7520.9° / 9.1°

Oct

3715.1° / 5.6°

Nov

510.4° / 2.8°

Dec

57.3° / 0.7°

Monthly climate evidence for Graham — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	8°C	1°C	163 mm	17	8 h 53	5	Strong coverage
February	9°C	0.7°C	104 mm	13.5	10 h 12	6	Strong coverage
March	11.4°C	2.3°C	124 mm	17.3	11 h 45	10	Strong coverage
April	14.1°C	4.1°C	102 mm	15.2	13 h 31	27	Strong coverage
May	18°C	7.2°C	70 mm	10.5	15 h 02	54	Strong coverage
June	20.6°C	9.6°C	58 mm	8.8	15 h 53	71	Strong coverage
July	24.4°C	11.6°C	24 mm	3.7	15 h 33	92	Strong coverage
August	24.8°C	11.7°C	19 mm	3	14 h 13	91	Strong coverage
September	20.9°C	9.1°C	41 mm	6.8	12 h 30	75	Strong coverage
October	15.1°C	5.6°C	97 mm	11.9	10 h 47	37	Strong coverage
November	10.4°C	2.8°C	172 mm	17.2	9 h 17	5	Good coverage
December	7.3°C	0.7°C	159 mm	16.9	8 h 31	5	Strong coverage

What has changed

Graham runs +0.6°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

+1.5

Feb

-1.2

Mar

-0.2

Apr

+0.1

May

+0.8

Jun

+0.5

Jul

+1.8

Aug

+1.7

Sep

+0.4

Oct

-0.1

Nov

+0.7

Dec

+0.6

July daytime highs, 2012–2025. Last recorded: 26.8°C.

Records at MCMILLIN RSVR, 1941–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.9°C20 Jan 2005	-17.8°C18 Jan 1950	64 mm7 Jan 2009	329 mm1953 · driest 12 mm in 1985	84
February	19.4°C9 Feb 1963	-16.1°C1 Feb 1950	69 mm8 Feb 1996	241 mm1961 · driest 9 mm in 1993	85
March	26.1°C30 Mar 2004	-12.8°C5 Mar 1955	55 mm27 Mar 2005	190 mm2026 · driest 15 mm in 1965	86
April	28.9°C18 Apr 2016	-5.0°C3 Apr 2004	66 mm5 Apr 1991	184 mm1996 · driest 7 mm in 2021	85
May	33.3°C18 May 2008	-3.3°C1 May 1954	49 mm15 May 2011	129 mm2010 · driest 4 mm in 2016	85
June	37.2°C28 Jun 2021	0.0°C3 Jun 1976	49 mm2 Jun 1968	130 mm1946 · driest 3 mm in 1951	86
July	38.9°C30 Jul 2009	2.2°C6 Jul 1952	45 mm9 Jul 1946	100 mm1983 · driest 0 mm in 2021	85
August	37.8°C10 Aug 1981	2.8°C29 Aug 1980	63 mm27 Aug 1960	132 mm1968 · driest 0 mm in 2012	82
September	35.0°C3 Sep 1988	-1.7°C27 Sep 1972	46 mm23 Sep 1978	141 mm1978 · driest 0 mm in 1993	84
October	30.0°C2 Oct 1987	-6.1°C28 Oct 1971	78 mm21 Oct 2003	212 mm1947 · driest 9 mm in 1987	85
November	22.8°C1 Nov 1949	-17.8°C15 Nov 1955	91 mm7 Nov 2006	363 mm2006 · driest 28 mm in 2019	84
December	18.9°C25 Dec 2005	-18.3°C23 Dec 1983	68 mm27 Dec 1974	311 mm1996 · driest 20 mm in 2013	85

Typical days per month at MCMILLIN RSVR, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	12	5	1
February	0	0	12	3	<1
March	0	0	8	3	<1
April	<1	0	2	3	0
May	3	<1	0	2	0
June	5	1	0	2	0
July	13	3	0	<1	0
August	13	3	0	<1	0
September	5	<1	0	<1	0
October	<1	0	2	3	0
November	0	0	7	5	<1
December	0	0	12	5	1

The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 91); on 2011–2025 it is July (89). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in MCMILLIN RSVR’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%	53%	16%	71%	4.9–9.4°C
February	0%	49%	12%	68%	7.0–11.4°C
March	2%	52%	10%	69%	9.2–13.2°C
April	10%	44%	8%	59%	12.3–16.3°C
May	27%	33%	5%	41%	15.8–20.2°C
June	46%	27%	5%	31%	18.4–23.0°C
July	77%	12%	2%	10%	22.1–26.6°C
August	79%	14%	3%	15%	22.3–26.6°C
September	53%	23%	5%	28%	19.3–23.0°C
October	11%	38%	10%	55%	14.1–17.1°C
November	<1%	55%	19%	77%	8.3–12.0°C
December	0%	55%	18%	74%	5.1–9.1°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.

1942Each stripe is one year’s mean temperature against the 79-year average. Warmest: 2015. Coolest: 1955.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5795906
NOAA station: USC00455224 · MCMILLIN RSVR
Station distance: 9.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 24 usable years
Daylight: Calculated from latitude 47.05°, 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 MCMILLIN RSVR is what differs

South Hill→Puyallup→Spanaway→Bonney Lake→Frederickson→Elk Plain→

Or put two places side by side: Graham vs South Hill

Best time to visitGraham.