United States · 1991–2020

Best time to visit
Twin Falls.

June leads for comfortable weather in Twin Falls: typically 26.4°C by day, 10.4°C at night, with 22 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high26.4°C

Typical low10.4°C

Rain in June22 mm

Comfort

June

June · September · May

83climate match

Beach

July

July · August · June

70climate match

Outdoors

May

May · October · June

86climate match

The weakest month is January, scoring 5 against June’s 83 — days reach only 4.1°C, 20° 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

54.1° / -5.2°

Feb

76.9° / -4.2°

Mar

3112.3° / -0.6°

Apr

4715.9° / 2.1°

May

7621.8° / 6.7°

Jun

8326.4° / 10.4°

Jul

7032.6° / 14.2°

Aug

7131.6° / 12.8°

Sep

8026.2° / 7.8°

Oct

5918.5° / 2.6°

Nov

199.4° / -2.6°

Dec

53.9° / -5.3°

Monthly climate evidence for Twin Falls — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4.1°C	-5.2°C	24 mm	5.7	9 h 22	5	Good coverage
February	6.9°C	-4.2°C	18 mm	4.9	10 h 29	7	Good coverage
March	12.3°C	-0.6°C	23 mm	4.9	11 h 48	31	Good coverage
April	15.9°C	2.1°C	28 mm	5.9	13 h 19	47	Good coverage
May	21.8°C	6.7°C	29 mm	5.2	14 h 35	76	Good coverage
June	26.4°C	10.4°C	22 mm	3.7	15 h 17	83	Good coverage
July	32.6°C	14.2°C	4 mm	1.1	15 h 01	70	Good coverage
August	31.6°C	12.8°C	6 mm	1.6	13 h 54	71	Good coverage
September	26.2°C	7.8°C	7 mm	1.6	12 h 26	80	Good coverage
October	18.5°C	2.6°C	16 mm	3.5	10 h 59	59	Good coverage
November	9.4°C	-2.6°C	21 mm	5	9 h 42	19	Good coverage
December	3.9°C	-5.3°C	36 mm	6.6	9 h 04	5	Good coverage

Records at TWIN FALLS-KMVT, 1980–2011
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.2°C31 Jan 2003	-25.0°C18 Jan 1984	17 mm20 Jan 1999	54 mm2006 · driest 0 mm in 2001	31
February	21.1°C28 Feb 1980	-27.2°C2 Feb 1996	36 mm18 Feb 1986	88 mm1986 · driest 2 mm in 1990	31
March	25.6°C21 Mar 2004	-15.6°C1 Mar 1993	34 mm17 Mar 1993	66 mm1993 · driest 0 mm in 2001	32
April	32.8°C30 Apr 1992	-8.9°C1 Apr 2008	34 mm20 Apr 1981	73 mm2005 · driest 2 mm in 1985	30
May	40.6°C27 May 2003	-4.4°C5 May 1982	27 mm31 May 1990	79 mm1998 · driest 0 mm in 2001	32
June	40.0°C30 Jun 2008	-0.6°C7 Jun 1995	39 mm8 Jun 2006	70 mm2009 · driest 0 mm in 2001	30
July	43.3°C23 Jul 2003	3.3°C8 Jul 1981	11 mm16 Jul 1996	17 mm1985 · driest 0 mm in 2000	31
August	40.6°C6 Aug 2001	2.8°C25 Aug 1992	15 mm19 Aug 1982	47 mm1983 · driest 0 mm in 1992	31
September	39.4°C3 Sep 2007	-4.4°C30 Sep 1985	18 mm9 Sep 1985	36 mm1985 · driest 0 mm in 1987	30
October	34.4°C2 Oct 2010	-11.7°C31 Oct 2002	29 mm24 Oct 2010	45 mm1989 · driest 0 mm in 1988	30
November	26.7°C7 Nov 1999	-19.4°C25 Nov 2010	26 mm18 Nov 1983	86 mm1988 · driest 0 mm in 2002	30
December	19.4°C2 Dec 1995	-29.4°C21 Dec 1990	28 mm5 Dec 1994	95 mm1996 · driest 0 mm in 2002	30

Typical days per month at TWIN FALLS-KMVT, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	26	<1	2
February	0	0	23	<1	2
March	<1	0	18	<1	<1
April	2	<1	8	<1	<1
May	9	3	2	<1	0
June	17	8	<1	<1	0
July	28	23	0	<1	0
August	27	21	0	<1	0
September	18	8	<1	<1	0
October	5	<1	8	<1	<1
November	<1	0	20	<1	<1
December	0	0	25	<1	3

How often, not how much — every day in TWIN FALLS-KMVT’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%	19%	<1%	21%	0.3–6.0°C
February	<1%	17%	1%	16%	1.7–9.5°C
March	6%	18%	1%	16%	10.0–15.2°C
April	25%	17%	2%	14%	13.4–19.3°C
May	54%	16%	3%	16%	18.9–24.1°C
June	79%	12%	2%	9%	23.1–29.7°C
July	95%	5%	<1%	<1%	28.5–34.6°C
August	94%	6%	<1%	3%	28.9–33.2°C
September	79%	7%	1%	5%	23.3–28.1°C
October	40%	13%	<1%	11%	15.9–20.8°C
November	4%	20%	2%	23%	5.6–12.2°C
December	0%	20%	2%	20%	0.5–6.3°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.

1981Each stripe is one year’s mean temperature against the 24-year average. Warmest: 2003. Coolest: 1985.2010

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5610810
NOAA station: USC00109293 · TWIN FALLS-KMVT
Station distance: 2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 42.56°, 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 TWIN FALLS-KMVT is what differs

Curry→McMillan→

Or put two places side by side: Twin Falls vs Curry

Best time to visitTwin Falls.

June

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Twin Falls.

The whole year,
without the guesswork.

Nearby, measured,
and named.