Yuma, AZ Climate & Monthly Averages

Arizona, United States 🇺🇸 · hot desert climate
Annual avg
76°
Hottest month
July
Coldest month
December
Rainy days / yr
16
Sunshine
11.2 h/day
Right now: 92° and clear - see live conditions

The climate of Yuma

Rain is the exception in Yuma. The city collects about 3.1 inches (79 mm) across 16 wet days in a typical year, which leaves the sky clear for most of it - 11.2 hours of sunshine a day on average. Highs run from 69°F (21°C) in December to 109°F (43°C) in July.

Climate quick facts

  • Hottest month: July - highs near 109°F (43°C)
  • Coldest month: December - highs near 69°F (21°C)
  • Decade extremes (2015-2024): 121°F (49°C) high · 30°F (-1°C) low
  • Wettest month: January (3 rainy days) · Sunniest: June (13.4 h sun/day)
  • Climate type: hot desert
  • Annual swing: 22°C between the average warmest and coolest month · day to night: 14°C
  • Months averaging 30°C or hotter: 7
  • Average humidity: 32%

Temperatures through the year

July is the warm end of the year, averaging 109°F (43°C) by day and 83°F (28°C) overnight. December bottoms out at 69°F (21°C) in daylight, 48°F (9°C) after dark. Average highs hold at or above 30°C for 7 months of the year, April through October being the unbroken run.

Rain, sun and snow

June is the brightest month at 13.4 hours of sun a day, against an annual average of 11.2 - sunnier than almost anywhere else we cover. 12 months average under 20 mm of rain, the longest unbroken stretch running January through December. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 121°F (49°C) and the lowest daily minimum 30°F (-1°C).

How Yuma compares

  • Annual precipitation is 3.1 inches (79 mm) - drier than almost every other city we track.
  • Afternoons run 14°C above the following night - a bigger day-to-night gap than any other city in our 3496-city dataset.
  • Relative humidity averages 32% - drier than almost every other city we track.

Ranked against every city in our dataset, each measured on the same ten-year window.

Monthly climate table

Monthly averages for Yuma based on 2015–2024 weather data. Daylight is sunrise to sunset on the 15th; wet-day chance is the share of days with measurable rain.
MonthHighLow Rain daysPrecipitation SunshineDaylightWet-day chanceHumidity
January 70° 47° 3 0.5 in 9.0 h/day 10.2 h 9% 42%
February 74° 50° 2 0.4 in 9.8 h/day 11.0 h 6% 34%
March 81° 55° 2 0.3 in 11.0 h/day 11.9 h 5% 32%
April 89° 61° 0 0.0 in 12.5 h/day 12.9 h 2% 24%
May 94° 66° 0 0.1 in 12.9 h/day 13.8 h 1% 27%
June 105° 75° 0 0.1 in 13.4 h/day 14.3 h 1% 25%
July 109° 83° 2 0.2 in 13.0 h/day 14.1 h 5% 31%
August 108° 83° 2 0.2 in 12.6 h/day 13.3 h 7% 36%
September 102° 77° 1 0.3 in 11.4 h/day 12.3 h 4% 35%
October 92° 66° 1 0.2 in 10.8 h/day 11.3 h 3% 30%
November 79° 55° 1 0.3 in 9.6 h/day 10.4 h 2% 30%
December 69° 48° 2 0.5 in 8.6 h/day 10.0 h 6% 38%

Yuma month by month

Average high and low for each month, with the bar showing where it sits in Yuma's year (left is the coldest night, right is the warmest afternoon).

January

Wettest
70°47°
Rain
3 days
Sunshine
9.0 h
Daylight
10.2 h

February

74°50°
Rain
2 days
Sunshine
9.8 h
Daylight
11.0 h

March

81°55°
Rain
2 days
Sunshine
11.0 h
Daylight
11.9 h

April

Driest
89°61°
Rain
0 days
Sunshine
12.5 h
Daylight
12.9 h

May

94°66°
Rain
0 days
Sunshine
12.9 h
Daylight
13.8 h

June

Sunniest
105°75°
Rain
0 days
Sunshine
13.4 h
Daylight
14.3 h

July

Hottest
109°83°
Rain
2 days
Sunshine
13.0 h
Daylight
14.1 h

August

108°83°
Rain
2 days
Sunshine
12.6 h
Daylight
13.3 h

September

102°77°
Rain
1 day
Sunshine
11.4 h
Daylight
12.3 h

October

92°66°
Rain
1 day
Sunshine
10.8 h
Daylight
11.3 h

November

79°55°
Rain
1 day
Sunshine
9.6 h
Daylight
10.4 h

December

Coldest
69°48°
Rain
2 days
Sunshine
8.6 h
Daylight
10.0 h

Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December

Seasons in Yuma

Spring (March through May)

Spring runs hot here - highs near 88°F (31°C), nights near 61°F (16°C), and precipitation is sparse, near 11 mm (0.4 in) for the season. Daylight is generous - around 12.1 hours of sun a day.

Summer (June through August)

Summer in Yuma is punishingly hot, with daytime highs averaging 107°F (42°C) and nights around 81°F (27°C); precipitation is sparse, near 12 mm (0.5 in) for the season. Daylight is generous - around 13.0 hours of sun a day.

Fall (September through November)

Fall sits firmly in the heat here - highs near 91°F (33°C), nights near 66°F (19°C), and precipitation is sparse, near 21 mm (0.8 in) for the season. Daylight is generous - around 10.6 hours of sun a day.

Winter (December through February)

Winter brings comfortable warmth here - highs near 71°F (22°C), nights near 48°F (9°C), and precipitation is sparse, near 1.4 inches (36 mm) for the season.

Climate questions, answered

What should I pack for Yuma?
It depends on the month: July runs to 109°F (43°C) while December holds at 69°F (21°C). The full month-by-month breakdown is in the packing notes above.
Are nights cold in Yuma?
By about 14°C on an average day - a wider day-to-night gap than most of the 3496 cities we track. In July that means 109°F (43°C) down to 83°F (28°C).
Is Yuma hot in summer?
July averages 109°F (43°C). That is serious heat, and the decade record for this location is 121°F (49°C).
How warm is Yuma on average?
76°F (25°C) across all twelve months - about 89°F (32°C) by day and 64°F (18°C) after dark.
Is Yuma humid?
Relative humidity averages 32% across the year, which reads as dry. The most comfortable stretch falls in the drier half of the year.
How much sun does Yuma get?
11.2 hours a day averaged over the year, peaking in June at 13.4 hours.

Best time to visit Yuma

November to March is the sweet spot for Yuma - temperatures sit either side of the peak heat rather than in it. Expect 75°F (24°C) in the afternoon and around 2 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in November.

Pack for Yuma with lightweight, breathable clothing and serious sun protection and a mid-layer for the evenings, which fall away fast after sunset. July nights average 83°F (28°C), so evenings rarely match the afternoons.

Yuma temperature records (2015-2024)

Highest recorded
121°
in July
Lowest recorded
30°
in January
Annual precipitation
3.1"
Snowy days / yr
0

Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.