Dublin, California climate: NOAA's gridded normals for the city, beside the nearest station records
NOAA's gridded 1991-2020 normals put Dublin's center at January lows of 39°F and July highs of 87°F, a yearly mean of 60.4°F and 17.9 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, Livermore (5 miles E, 393 ft), has January lows of 38°F and July highs of 88°F.
70,544 people (Census Bureau 2024). Distances and directions are from the city's center.
- Jan 57° 39°
- Feb 61° 42°
- Mar 66° 44°
- Apr 70° 46°
- May 76° 50°
- Jun 83° 54°
- Jul 87° 57°
- Aug 87° 57°
- Sep 85° 56°
- Oct 77° 51°
- Nov 65° 44°
- Dec 57° 39°
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 Dublin's center.
What is each month like in Dublin?
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. | Livermore high | Livermore low |
|---|---|---|---|---|---|---|
| January | 57°F | 39°F | 48.1°F | 3.45 | 57°F | 38°F |
| February | 61°F | 42°F | 51.4°F | 3.43 | 61°F | 40°F |
| March | 66°F | 44°F | 54.7°F | 2.72 | 65°F | 42°F |
| April | 70°F | 46°F | 57.9°F | 1.34 | 69°F | 45°F |
| May | 76°F | 50°F | 63.0°F | 0.64 | 75°F | 49°F |
| June | 83°F | 54°F | 68.7°F | 0.10 | 83°F | 54°F |
| July | 87°F | 57°F | 72.4°F | 0.00 | 88°F | 57°F |
| August | 87°F | 57°F | 72.2°F | 0.02 | 88°F | 57°F |
| September | 85°F | 56°F | 70.2°F | 0.09 | 85°F | 55°F |
| October | 77°F | 51°F | 63.8°F | 0.86 | 78°F | 49°F |
| November | 65°F | 44°F | 54.3°F | 1.79 | 66°F | 42°F |
| December | 57°F | 39°F | 48.2°F | 3.44 | 58°F | 38°F |
In metric: a yearly mean of 15.8°C, January lows of 4°C, July highs of 31°C and 454 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 Dublin 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 |
|---|---|---|---|---|---|---|---|---|
| LivermoreLivermore Municipal Airport | 5 mi E | 393 ft | 59.8°F | 38°F | 88°F | 15.2 | – | February 27 |
| Mount Diablo Junction | 11 mi N | 2,170 ft | 58.4°F | 42°F | 83°F | 26.1 | 1 | March 8 |
| HaywardHayward Air Terminal | 13 mi W | 43 ft | 59.6°F | 43°F | 75°F | 16.0 | – | January 2 |
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 Dublin?
NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, Livermore (5 miles E, 393 ft). NOAA publishes no snowfall normal for it; the nearest record that has one, Mount Diablo Junction (11 miles N), gets 1 inches a year. The last spring frost (32°F) comes after February 27 in half of years and the first autumn frost before December 1. Its record high is 113°F (2006) and its record low 20°F (2007) (kept since 1998).
The USDA's 2023 Plant Hardiness Zone Map puts Dublin in zone 9b (ZIP code 94568).
Over a year 89% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (5.3 kWh per square metre a day, NASA POWER 2001-2020); July is the sunniest month (97%) and January the cloudiest (74%).
Livermore'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 Dublin; the nearest record's month pages have them.
Source: NOAA NCEI 1991-2020 normals, station USW00023285; 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 Dublin, ZIP code by ZIP code?
One ZIP code area lies wholly or partly in Dublin. 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.