Yuma, AZ weather in September
In September, Yuma sees highs around 101°F and lows around 78°F: very hot and dry. There are about 2 days with rain. Plan outdoor time for mornings and evenings.
- Normal high
- 101°F
- Normal low
- 78°F
- Wet days
- 2
- 0.7 in total
- Daylight
- 12.4 h
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 105°F | 96°F |
| Normal low | 82°F | 72°F |
| Chance of a wet day | 6% | 3% |
| Sunrise / sunset | 6:13 am / 7:03 pm | 6:32 am / 6:24 pm |
| Daylight | 12.8 h | 11.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Arizona time (no daylight saving)).
A typical September day
- 6 am75°Fdew point 54°F
- 9 am89°Fdew point 56°F
- Noon98°Fdew point 52°F
- 3 pm101°Fdew point 50°F
- 6 pm94°Fdew point 52°F
- 9 pm85°Fdew point 53°F
NOAA hourly normals (local standard time) from Imperial Co Airport (56 mi away); average wind 7 mph; clear or few clouds in 92% of daytime hours, mostly cloudy or overcast in 6%.
What kind of days to expect
- Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)0 of 30
- Hot dayshigh 90°F or more29 of 30
- Wet daysat least 0.01 in of rain or melted snow2 of 30
- Notable rainat least 0.10 in1 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 0.7 in; a dry September brings about 0.02 in and a wet one about 0.9 in (25th and 75th percentiles). Days with half an inch or more are rare.
How September varies from year to year
- Warmest September, 1991-20202020: average high 105°F
- Coolest September2017: average high 98°F
- Wettest September1997: 5.1 in
- Driest September1992: no measurable precipitation
- Highest reading120°F (September 5, 2020)
- Lowest reading58°F (September 30, 2019)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 106°F | 101°F | 90°F |
| Normal low | 83°F | 78°F | 66°F |
| Wet days | 1 | 2 | 1 |
| Comfortable days | 0 | 0 | 4 |
| Daylight | 13.3 h | 12.4 h | 11.4 h |
Highs change by -5°F from August and -11°F into October.
Nearby alternatives in September
- Cooler: El Cajon, CA136 mi · high 87°F · 1 wet day
How Yuma ranks in September
- Normal high3rd warmest of 378 cities; 1st of 13 in Arizona
- Wet days54th driest of 378
What to pack for Yuma in September
- Light, breathable clothing – highs near 101°F
Heating and cooling
September has 0 heating degree days and 735 cooling degree days (base 65°F), 14% of the year's total heating and cooling demand.
Questions
How hot is Yuma in September?
The normal high is 101°F and the normal low is 78°F. From 1991 to 2020 the hottest September reading was 120°F (September 5, 2020).
Does it rain a lot in Yuma in September?
About 2 days in September have at least 0.01 in of precipitation, and the normal total is 0.7 in. The wettest September in 1991-2020 was in 1997 (5.1 in); the driest was in 1992, with no measurable precipitation.
Is September a good time to visit Yuma?
September ranks 12th of 12 months on our comfort score for Yuma (33 out of 100). It has almost no comfortable days (judged by temperature only) and about 29 days at 90°F or hotter. The best months are January, February and December.
Where the numbers come from
- Temperature and rain: Yuma MCAS (USW00003145), 5.2 mi S of the city center, 213 ft (72 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Snowfall, snow depth and frost dates: Yuma Quartermaster Depot (USC00029656), 0.2 mi NE of the city center, 160 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Imperial Co Airport (USW00003144), 56 mi W of the city center, -58 ft (199 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Not available for this location: daily humidity and wind (no station close enough or similar enough in elevation).