Casa Grande weather in January: Casa Grande, Arizona: normal highs, lows, rain and records for January
Casa Grande in January has a normal high of 69°F and a normal low of 39°F, a daily mean of 54°F, rising from 67°F on the 1st to 70°F by the 31st. Measurable precipitation falls on 4 days in a normal January, 0.79 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 4°C, 20 mm of precipitation in January.
- NOAA stationCasa Grande
- Station IDUSC00021306
- Location32.89°N 111.71°W
- Elevation1,400 ft (427 m)
- From the center3 miles
- Population68,927
- Jan 69° 39°
- Feb 73° 42°
- Mar 80° 47°
- Apr 88° 53°
- May 96° 60°
- Jun 106° 70°
- Jul 107° 78°
- Aug 105° 77°
- Sep 100° 71°
- Oct 91° 57°
- Nov 78° 45°
- Dec 68° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Casa Grande in January?
The normal high is 69°F and the normal low 39°F, for a daily mean of 53.9°F. January is 0.9°F warmer than December and 3.1°F cooler than February. January is the 11th warmest month of the year in Casa Grande and the 4th wettest. Across the month the normal high rises 3°F, from 67°F on January 1 to 70°F on January 31. From one year to the next January's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 52°F and 56°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 12%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| January 1 | 67°F | 38°F | 12% | 6% |
| January 8 | 68°F | 39°F | 12% | 6% |
| January 15 | 69°F | 39°F | 11% | 6% |
| January 22 | 69°F | 40°F | 12% | 7% |
| January 31 | 70°F | 40°F | 12% | 7% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 31, coldest night January 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 67°F | 38°F | 12% | 6% | 10 h |
| January 2 | 67°F | 38°F | 12% | 6% | 10 h |
| January 3 | 67°F | 38°F | 12% | 6% | 10 h |
| January 4 | 67°F | 38°F | 12% | 6% | 10 h |
| January 5 | 68°F | 38°F | 12% | 6% | 10 h |
| January 6 | 68°F | 39°F | 12% | 6% | 10 h |
| January 7 | 68°F | 39°F | 12% | 6% | 10 h |
| January 8 | 68°F | 39°F | 12% | 6% | 10 h 10 min |
| January 9 | 68°F | 39°F | 11% | 6% | 10 h 10 min |
| January 10 | 68°F | 39°F | 11% | 6% | 10 h 10 min |
| January 11 | 68°F | 39°F | 11% | 6% | 10 h 10 min |
| January 12 | 68°F | 39°F | 11% | 6% | 10 h 10 min |
| January 13 | 68°F | 39°F | 11% | 6% | 10 h 10 min |
| January 14 | 69°F | 39°F | 11% | 6% | 10 h 10 min |
| January 15 | 69°F | 39°F | 11% | 6% | 10 h 10 min |
| January 16 | 69°F | 39°F | 11% | 6% | 10 h 10 min |
| January 17 | 69°F | 39°F | 11% | 6% | 10 h 10 min |
| January 18 | 69°F | 39°F | 11% | 6% | 10 h 20 min |
| January 19 | 69°F | 39°F | 11% | 6% | 10 h 20 min |
| January 20 | 69°F | 39°F | 11% | 6% | 10 h 20 min |
| January 21 | 69°F | 39°F | 12% | 6% | 10 h 20 min |
| January 22 | 69°F | 40°F | 12% | 7% | 10 h 20 min |
| January 23 | 70°F | 40°F | 12% | 7% | 10 h 20 min |
| January 24 | 70°F | 40°F | 12% | 7% | 10 h 20 min |
| January 25 | 70°F | 40°F | 12% | 7% | 10 h 20 min |
| January 26 | 70°F | 40°F | 12% | 7% | 10 h 30 min |
| January 27 | 70°F | 40°F | 12% | 7% | 10 h 30 min |
| January 28 | 70°F | 40°F | 12% | 7% | 10 h 30 min |
| January 29 | 70°F | 40°F | 12% | 7% | 10 h 30 min |
| January 30 | 70°F | 40°F | 12% | 7% | 10 h 30 min |
| January 31 | 70°F | 40°F | 12% | 7% | 10 h 30 min |
- Normal high
- 69°FJanuary average
- Normal low
- 39°FJanuary average
- Precipitation
- 0.79 inmonth total
- Days with precipitation
- 40.01 inch or more
- Nights at 32°F or colder
- 5
- Daylight
- 10 h to 10 h 30 minJanuary 1 to January 31
- Days at 70°F or more
- 14
- Days at 80°F or more
- 2
- Sunshine
- 87%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00021306; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Casa Grande in January?
On a given January day the chance of 0.01 inch or more is 12% on average, highest around January 31 (12%). In all, 0.79 in falls on 4 days of a normal January.
In a normal January in Casa Grande, 5 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00021306.
What are the records for January in Casa Grande?
The warmest January temperature on this station's record (since 1903) is 87°F, on January 27, 1908; the coldest is 17°F, on January 23, 1937. The wettest January brought 3.01 in (1979); the snowiest, 3.0 inches (1933).
The January mean against the 1991-2020 normal of 53.9°F: 2021 53.3°F (−0.6), 2022 54.0°F (+0.1), 2023 51.4°F (−2.5), 2024 51.7°F (−2.2), 2025 50.0°F (−3.9), 2026 56.1°F (+2.2). 2 of 6 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 53.3°F | −0.6°F | 0.68 in |
| 2022 | 54.0°F | +0.1°F | 0.04 in |
| 2023 | 51.4°F | −2.5°F | 1.21 in |
| 2024 | 51.7°F | −2.2°F | 1.14 in |
| 2025 | 50.0°F | −3.9°F | 0.07 in |
| 2026 | 56.1°F | +2.2°F | 0.44 in |
Source: records: ACIS, station USC00021306; recent months: ACIS, station USC00021306. Records and recent months use complete months only.
How does January in Casa Grande compare across Arizona?
Across the 97 places PlainClimate covers in Arizona, January normal highs run from 39°F in Lukachukai to 71°F in Gila Bend; Casa Grande's is 69°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Casa Grande in December68°F by day, 38°F at night
- Casa Grande in February73°F by day, 42°F at night
- Casa Grande through the yearEvery month, frost dates, records and recent years
- Arizona in JanuaryThe statewide normal and the warmest and coolest places
- Gila Bend: Arizona's warmest Januarynormal high 71°F