United States · 1991–2020

Best time to visit
The Dalles.

June leads for comfortable weather in The Dalles: typically 26.1°C by day, 11.9°C at night, with 10 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high26.1°C

Typical low11.9°C

Rain in June10 mm

Comfort

June

June · May · September

88climate match

Beach

July

July · August · June

76climate match

Outdoors

October

October · May · April

87climate match

The weakest month is January, scoring 5 against June’s 88 — days reach only 6.3°C, 18° 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

56.3° / -0.9°

Feb

199.5° / -0.9°

Mar

4014.1° / 1.5°

Apr

6018.3° / 4.3°

May

8423.1° / 8.6°

Jun

8826.1° / 11.9°

Jul

7631.2° / 14.8°

Aug

7531.3° / 14.5°

Sep

8027.5° / 10.1°

Oct

6519.6° / 4.7°

Nov

2511.1° / 1.3°

Dec

56.1° / -0.9°

Monthly climate evidence for The Dalles — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.3°C	-0.9°C	60 mm	8.6	9 h 03	5	Strong coverage
February	9.5°C	-0.9°C	41 mm	7.1	10 h 18	19	Strong coverage
March	14.1°C	1.5°C	33 mm	6.5	11 h 46	40	Strong coverage
April	18.3°C	4.3°C	24 mm	5.1	13 h 27	60	Strong coverage
May	23.1°C	8.6°C	18 mm	4.4	14 h 53	84	Strong coverage
June	26.1°C	11.9°C	10 mm	2.1	15 h 40	88	Good coverage
July	31.2°C	14.8°C	3 mm	0.6	15 h 21	76	Strong coverage
August	31.3°C	14.5°C	5 mm	1.2	14 h 07	75	Good coverage
September	27.5°C	10.1°C	7 mm	1.4	12 h 28	80	Strong coverage
October	19.6°C	4.7°C	28 mm	5.3	10 h 51	65	Strong coverage
November	11.1°C	1.3°C	51 mm	9.1	9 h 25	25	Strong coverage
December	6.1°C	-0.9°C	65 mm	8.6	8 h 43	5	Good coverage

What has changed

The Dalles runs -0.0°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

-0.1

Feb

-0.7

Mar

-0.6

Apr

-0.7

May

+0.4

Jun

-0.6

Jul

+1.2

Aug

+1.1

Sep

+0.3

Oct

-0.3

Nov

+0.1

Dec

-0.2

June daytime highs, 2011–2024. Last recorded: 27.3°C.

Records at THE DALLES, 1893–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.3°C21 Jan 1897	-23.9°C8 Jan 1912	56 mm15 Jan 1956	167 mm1956 · driest 2 mm in 1985	119
February	21.7°C29 Feb 2008	-24.4°C1 Feb 1950	45 mm10 Feb 1961	124 mm1986 · driest 0 mm in 1920	118
March	27.8°C31 Mar 1911	-13.3°C5 Mar 2019	32 mm31 Mar 1940	98 mm1957 · driest 0 mm in 2019	122
April	35.0°C28 Apr 1926	-3.9°C3 Apr 1918	56 mm5 Apr 2011	90 mm2011 · driest 0 mm in 1946	125
May	41.7°C31 May 1986	-1.1°C10 May 1999	27 mm15 May 2011	52 mm1945 · driest 0 mm in 1931	122
June	46.1°C28 Jun 2021	0.0°C5 Jun 1914	38 mm16 Jun 1903	71 mm1947 · driest 0 mm in 1932	117
July	46.1°C16 Jul 1941	3.9°C15 Jul 1924	26 mm6 Jul 1981	34 mm1995 · driest 0 mm in 1933	120
August	43.3°C12 Aug 2021	4.4°C16 Aug 1909	23 mm5 Aug 1943	45 mm1983 · driest 0 mm in 2000	117
September	41.7°C3 Sep 1950	-3.9°C25 Sep 1926	32 mm14 Sep 1918	74 mm1911 · driest 0 mm in 1943	116
October	33.9°C4 Oct 2022	-7.8°C31 Oct 2019	41 mm27 Oct 1994	112 mm1893 · driest 0 mm in 1895	121
November	25.0°C5 Nov 1941	-18.3°C27 Nov 1896	107 mm19 Nov 1921	239 mm1921 · driest 1 mm in 1929	119
December	23.3°C10 Dec 1933	-21.1°C9 Dec 2013	51 mm22 Dec 1964	230 mm1964 · driest 9 mm in 1976	114

Typical days per month at THE DALLES, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	18	2	2
February	0	0	17	1	1
March	<1	0	11	<1	<1
April	3	<1	4	<1	0
May	11	4	<1	<1	0
June	16	7	0	<1	0
July	27	19	0	0	0
August	27	19	0	0	0
September	20	10	<1	<1	0
October	4	<1	4	<1	0
November	0	0	12	1	<1
December	0	0	19	2	1

How often, not how much — every day in THE DALLES’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%	31%	6%	38%	0.7–8.8°C
February	<1%	28%	5%	31%	5.5–12.2°C
March	10%	21%	2%	21%	12.0–16.9°C
April	37%	13%	1%	10%	16.5–21.1°C
May	65%	11%	<1%	7%	20.5–25.8°C
June	86%	9%	<1%	4%	24.3–29.5°C
July	97%	3%	<1%	<1%	28.4–33.6°C
August	96%	4%	<1%	2%	28.6–33.2°C
September	87%	8%	1%	5%	24.1–29.5°C
October	46%	15%	2%	16%	17.1–22.0°C
November	2%	29%	5%	38%	8.7–13.0°C
December	<1%	31%	6%	38%	3.6–8.5°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.

1893Each stripe is one year’s mean temperature against the 98-year average. Warmest: 1958. Coolest: 1893.2022

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5756304
NOAA station: USC00358407 · THE DALLES
Station distance: 2.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 45.59°, 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 THE DALLES is what differs

Chenoweth→Lyle→Rowena→

Or put two places side by side: The Dalles vs Chenoweth

Best time to visitThe Dalles.