Mission, Texas climate: NOAA's gridded normals for the city, beside the nearest station records
NOAA's gridded 1991-2020 normals put Mission's center at January lows of 50°F and July highs of 98°F, a yearly mean of 75.5°F and 22.0 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, McAllen (5 miles E, 100 ft), has January lows of 53°F and July highs of 99°F.
88,574 people (Census Bureau 2024). Distances and directions are from the city's center.
- Jan 71° 50°
- Feb 76° 54°
- Mar 82° 60°
- Apr 88° 65°
- May 92° 72°
- Jun 97° 76°
- Jul 98° 76°
- Aug 99° 76°
- Sep 94° 73°
- Oct 88° 66°
- Nov 80° 57°
- Dec 73° 51°
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 Mission's center.
What is each month like in Mission?
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. | McAllen high | McAllen low |
|---|---|---|---|---|---|---|
| January | 71°F | 50°F | 60.5°F | 0.82 | 73°F | 53°F |
| February | 76°F | 54°F | 65.1°F | 0.76 | 77°F | 57°F |
| March | 82°F | 60°F | 70.8°F | 1.16 | 83°F | 63°F |
| April | 88°F | 65°F | 76.4°F | 1.42 | 88°F | 68°F |
| May | 92°F | 72°F | 81.9°F | 2.24 | 93°F | 74°F |
| June | 97°F | 76°F | 86.2°F | 2.74 | 97°F | 78°F |
| July | 98°F | 76°F | 87.1°F | 2.13 | 99°F | 79°F |
| August | 99°F | 76°F | 87.8°F | 1.75 | 100°F | 79°F |
| September | 94°F | 73°F | 83.3°F | 4.51 | 94°F | 76°F |
| October | 88°F | 66°F | 77.1°F | 2.23 | 89°F | 69°F |
| November | 80°F | 57°F | 68.4°F | 1.19 | 80°F | 60°F |
| December | 73°F | 51°F | 61.8°F | 1.00 | 74°F | 54°F |
In metric: a yearly mean of 24.2°C, January lows of 10°C, July highs of 37°C and 558 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 Mission 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 |
|---|---|---|---|---|---|---|---|---|
| McAllenMcAllen Miller International Airport | 5 mi E | 100 ft | 77.4°F | 53°F | 99°F | 22.2 | – | January 9 |
| La Joya | 8 mi N | 213 ft | 73.4°F | 47°F | 95°F | 20.2 | 0 | January 23 |
| Edinburg | 12 mi NE | 96 ft | 75.0°F | 49°F | 97°F | 24.1 | – | January 8 |
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 Mission?
NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, McAllen (5 miles E, 100 ft). NOAA publishes no snowfall normal for it; the nearest record that has one, La Joya (8 miles N), gets 0 inches a year. The last spring frost (32°F) comes after January 9 in half of years and the first autumn frost before January 3. Its record high is 111°F (2024) and its record low 13°F (1962), on the National Weather Service's long record for the area (kept since 1941).
The USDA's 2023 Plant Hardiness Zone Map puts Mission in zone 10a (ZIP code 78572).
Over a year 81% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (5.1 kWh per square metre a day, NASA POWER 2001-2020); August is the sunniest month (90%) and January the cloudiest (72%).
McAllen'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 Mission; the nearest record's month pages have them.
Source: NOAA NCEI 1991-2020 normals, station USW00012959; records: ACIS; 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 Mission, ZIP code by ZIP code?
One ZIP code area lies wholly or partly in Mission. Each row also names the nearest station record and its frost dates.
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.