United States · 1991–2020

Best time to visit
Riddle.

June leads for comfortable weather in Riddle: typically 25.6°C by day, 10.2°C at night, with 25 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high25.6°C

Typical low10.2°C

Rain in June25 mm

Comfort

June

June · September · May

85climate match

Beach

July

July · August · September

72climate match

Outdoors

May

May · June · October

81climate match

The weakest month is December, scoring 5 against June’s 85 — days reach only 9.5°C, 14° 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

1210.7° / 2.3°

Feb

2713.2° / 2.6°

Mar

3515.6° / 3.4°

Apr

5118.2° / 4.9°

May

7522.3° / 7.7°

Jun

8525.6° / 10.2°

Jul

7430.4° / 12.5°

Aug

7230.7° / 11.8°

Sep

7627.8° / 8.8°

Oct

6620.8° / 5.9°

Nov

2613.6° / 4.5°

Dec

59.5° / 2.3°

Monthly climate evidence for Riddle — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	10.7°C	2.3°C	120 mm	13.6	9 h 20	12	Strong coverage
February	13.2°C	2.6°C	88 mm	11.6	10 h 27	27	Strong coverage
March	15.6°C	3.4°C	86 mm	13.2	11 h 47	35	Strong coverage
April	18.2°C	4.9°C	64 mm	11.9	13 h 20	51	Strong coverage
May	22.3°C	7.7°C	47 mm	8.3	14 h 37	75	Strong coverage
June	25.6°C	10.2°C	25 mm	4.1	15 h 20	85	Strong coverage
July	30.4°C	12.5°C	7 mm	1.3	15 h 03	74	Strong coverage
August	30.7°C	11.8°C	7 mm	1.3	13 h 56	72	Strong coverage
September	27.8°C	8.8°C	18 mm	3.2	12 h 26	76	Strong coverage
October	20.8°C	5.9°C	57 mm	7.9	10 h 58	66	Strong coverage
November	13.6°C	4.5°C	116 mm	13.4	9 h 40	26	Strong coverage
December	9.5°C	2.3°C	158 mm	15	9 h 02	5	Strong coverage

What has changed

Riddle runs +2.3°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

+2.3

Feb

+0.5

Mar

+1.4

Apr

+2.1

May

+2.8

Jun

+2.8

Jul

+3.4

Aug

+3.8

Sep

+3.0

Oct

+1.9

Nov

+1.9

Dec

+1.3

June daytime highs, 2011–2025. Last recorded: 29.2°C.

Records at RIDDLE, 1899–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.8°C18 Jan 1997	-16.7°C21 Jan 1962	72 mm15 Jan 1974	299 mm1914 · driest 12 mm in 1920	113
February	26.7°C26 Feb 1992	-13.3°C5 Feb 1989	83 mm18 Feb 1983	250 mm1940 · driest 11 mm in 1913	113
March	30.0°C20 Mar 2026	-6.7°C6 Mar 1956	95 mm16 Mar 2025	237 mm2012 · driest 2 mm in 1926	112
April	35.0°C28 Apr 2023	-5.0°C3 Apr 1918	33 mm18 Apr 2000	130 mm2019 · driest 8 mm in 1939	111
May	41.1°C17 May 2008	-3.3°C1 May 1954	49 mm6 May 1963	172 mm1998 · driest 3 mm in 1931	108
June	43.9°C27 Jun 2021	1.1°C20 Jun 1943	38 mm28 Jun 1992	83 mm1931 · driest 0 mm in 2003	110
July	42.2°C29 Jul 2009	1.7°C7 Jul 1935	33 mm26 Jul 1947	62 mm1947 · driest 0 mm in 1949	112
August	43.3°C15 Aug 2023	2.2°C15 Aug 1935	35 mm23 Aug 1983	78 mm1983 · driest 0 mm in 1969	110
September	42.2°C6 Sep 2024	-4.4°C25 Sep 1926	47 mm26 Sep 1986	115 mm1986 · driest 0 mm in 1987	111
October	38.9°C3 Oct 1980	-8.3°C31 Oct 2002	98 mm29 Oct 1950	296 mm1950 · driest 0 mm in 1936	111
November	27.2°C7 Nov 1921	-10.6°C14 Nov 1978	113 mm20 Nov 2012	388 mm1973 · driest 8 mm in 1976	112
December	23.3°C18 Dec 1979	-16.1°C11 Dec 1932	102 mm10 Dec 1939	425 mm1996 · driest 21 mm in 2013	113

Typical days per month at RIDDLE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	8	4
February	<1	0	6	3
March	<1	0	5	2
April	4	<1	1	1
May	10	3	<1	1
June	17	6	0	<1
July	28	18	0	<1
August	29	19	0	<1
September	21	11	0	<1
October	8	1	2	2
November	<1	0	3	4
December	0	0	7	6

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 87); on 2011–2025 it is May (86). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in RIDDLE’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%	44%	14%	57%	7.4–12.0°C
February	3%	42%	10%	57%	10.6–15.1°C
March	15%	40%	8%	53%	12.8–17.6°C
April	32%	33%	4%	41%	15.6–20.8°C
May	56%	23%	3%	24%	19.3–24.9°C
June	80%	14%	2%	11%	23.0–28.1°C
July	96%	3%	<1%	1%	27.1–32.4°C
August	95%	5%	1%	3%	27.3–32.6°C
September	83%	12%	2%	12%	23.9–29.8°C
October	46%	25%	6%	33%	18.0–22.7°C
November	4%	42%	14%	58%	11.1–15.5°C
December	<1%	45%	16%	60%	7.7–11.6°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.

1914Each stripe is one year’s mean temperature against the 100-year average. Warmest: 2014. Coolest: 1929.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5748229
NOAA station: USC00357169 · RIDDLE
Station distance: 0.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 42.95°, 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 RIDDLE is what differs

Tri-City→Myrtle Creek→Canyonville→Days Creek→Camas Valley→Cow Creek→

Or put two places side by side: Riddle vs Tri-City

Best time to visitRiddle.

June

July

May

The whole year,without the guesswork.

Riddle runs +2.3°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Riddle.

The whole year,
without the guesswork.

Riddle runs +2.3°C
on the 1961–1990 baseline.

Nearby, measured,
and named.