Marana, Arizona climate: NOAA's gridded normals for the city, beside the nearest station records
NOAA's gridded 1991-2020 normals put Marana's center at January lows of 39°F and July highs of 102°F, a yearly mean of 69.9°F and 11.2 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, Catalina (12 miles E, 2,707 ft), has January lows of 31°F and July highs of 100°F.
62,380 people (Census Bureau 2024). Distances and directions are from the city's center.
- Jan 66° 39°
- Feb 69° 41°
- Mar 76° 46°
- Apr 83° 51°
- May 92° 60°
- Jun 102° 69°
- Jul 102° 75°
- Aug 100° 74°
- Sep 96° 69°
- Oct 87° 57°
- Nov 75° 46°
- Dec 65° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
The months above are NOAA's gridded normals at Marana's center.
What is each month like in Marana?
NOAA's grid estimates the normals every 5 km or so from the stations around each point, terrain included. It smooths between stations, so night lows at the heart of a large city can run warmer than the grid shows: at five big-city airports we compared, the grid's highs were within about 1°F of the station and its lows 1-6°F cooler. The nearest record's high and low are beside each month.
| Month | High | Low | Mean | Precip. | Catalina high | Catalina low |
|---|---|---|---|---|---|---|
| January | 66°F | 39°F | 52.5°F | 0.98 | 67°F | 31°F |
| February | 69°F | 41°F | 55.2°F | 1.21 | 68°F | 32°F |
| March | 76°F | 46°F | 60.7°F | 0.75 | 75°F | 36°F |
| April | 83°F | 51°F | 67.3°F | 0.33 | 82°F | 43°F |
| May | 92°F | 60°F | 76.0°F | 0.30 | 91°F | 51°F |
| June | 102°F | 69°F | 85.7°F | 0.15 | 101°F | 60°F |
| July | 102°F | 75°F | 88.3°F | 1.56 | 100°F | 71°F |
| August | 100°F | 74°F | 87.0°F | 2.12 | 98°F | 69°F |
| September | 96°F | 69°F | 82.4°F | 1.22 | 96°F | 62°F |
| October | 87°F | 57°F | 72.0°F | 0.58 | 87°F | 48°F |
| November | 75°F | 46°F | 60.4°F | 0.78 | 76°F | 38°F |
| December | 65°F | 38°F | 51.7°F | 1.18 | 66°F | 31°F |
In metric: a yearly mean of 21.1°C, January lows of 4°C, July highs of 39°C and 284 mm of precipitation a year.
Source: NOAA NCEI U.S. Monthly Gridded Climate Normals 1991-2020 (nClimGrid, accession 0245564); NOAA NCEI 1991-2020 station normals. The grid cell holding the city's Census center point.
What do the station records around Marana say?
Each row is a NOAA station's own 1991-2020 normals, with the snow and frost dates the grid does not give. A record downhill or nearer the coast than the city can run warmer, one uphill cooler: compare the elevations.
| Record | Where | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| CatalinaCatalina State Park | 12 mi E | 2,707 ft | 65.6°F | 31°F | 100°F | 13.2 | – | April 2 |
| Casas AdobesTohono Chul | 13 mi SE | 2,527 ft | 69.3°F | 37°F | 101°F | – | – | February 26 |
| Tucson U Of A #1 | 16 mi SE | 2,315 ft | 70.3°F | 39°F | 101°F | 10.8 | 0 | February 11 |
Source: NOAA NCEI 1991-2020 U.S. Climate Normals; place center and population: Census Bureau 2024. Last frost: the median last spring date of 32°F.
How much snow, how late a frost, what zone and how much sun in Marana?
NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, Catalina (12 miles E, 2,707 ft). NOAA publishes no snowfall normal for it; the nearest record that has one, Tucson U Of A #1 (16 miles SE), gets 0 inches a year. The last spring frost (32°F) comes after April 2 in half of years and the first autumn frost before November 11.
The USDA's 2023 Plant Hardiness Zone Map puts Marana in zones 9a to 9b across its 5 ZIP code areas.
Over a year 89% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (5.8 kWh per square metre a day, NASA POWER 2001-2020); June is the sunniest month (94%) and July the cloudiest (84%).
Catalina's page has its months, frost probabilities, records by month and recent years. NOAA's grid has monthly figures only, so there are no day-by-day month pages for Marana; the nearest record's month pages have them.
Source: NOAA NCEI 1991-2020 normals, station USC00021357; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; sunshine: NASA POWER.
How does the climate vary across Marana, ZIP code by ZIP code?
5 ZIP code areas lie wholly or partly in Marana. On NOAA's grid 85653 is the warmest (70.6°F a year) and 85658 the coolest (69.6°F), a spread of 1.0°F. Each row also names the nearest station record and its frost dates.
| ZIP code | Zone | Year | Jan low | Jul high | Precip. | Nearest record | Last frost | First frost |
|---|---|---|---|---|---|---|---|---|
| 85653 | 9b | 70.6°F | 40°F | 102°F | 10.2 | Picacho (17 mi) | February 6 | December 9 |
| 85658 | 9b | 69.6°F | 39°F | 101°F | 11.7 | Catalina (15 mi) | April 2 | November 11 |
| 85741 | 9a | 69.7°F | 38°F | 101°F | 11.3 | Casas Adobes (4 mi) | February 26 | December 4 |
| 85742 | 9b | 69.7°F | 39°F | 101°F | 11.5 | Casas Adobes (5 mi) | February 26 | December 4 |
| 85743 | 9b | 70.3°F | 40°F | 101°F | 11.0 | Tucson U Of A #1 (11 mi) | February 11 | December 2 |
Source: Census Bureau 2020 ZCTA-to-place relationship file and ZCTA centers; NOAA NCEI gridded and station normals, 1991-2020. A ZIP area counts when at least a tenth of its land (and 0.5 km²) is in the city; its figures are the grid cell at its center; frost dates are the nearest record's medians of 32°F.