Photo: User:Stilfehler · Public domainDaly City’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 67°, a January night drops to 45°, and snow is almost unheard of.
A year in Daly City at a glance
Each month’s typical high and low, and what it brings.
What stands out about Daly City’s climate
Compared with towns across the U.S., with Daly City’s place in California beside it.
What a year in Daly City feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Frost is rare
Frost and day counts come from NOAA’s station at San Francisco Dwtn, CA, 5 miles from the city’s center point, 150 ft lower.
The 2023 USDA map puts Daly City’s center in zone 10b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 35°. Plant labels use the zone; frost dates tell you when to plant.
90° days by month
Average days at 90° or more
About 25 inches of rain a year
December is the wettest month and July the driest. Rain falls on about 69 days a year. Snow is rare: about 0.0" in a normal year at Pacifica 4 Sse, CA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Daly City
96% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from December through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at San Francisco Dwtn, CA.
Living with Daly City’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 10b. Frost almost never comes, so tender plants can often stay out through winter.
Months with highs of 62–84° and lows of 40° or more: April, May, June, July, August, September, October and November. 8.6 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Daly City from natural hazards, earthquakes are the largest share (77%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Daly City and its neighbors
Colma has the coldest January nights next door (43°, 2° colder) and Colma the hottest July afternoons (72°, 5° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Daly City’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Daly City, CA | 45° | 67° | 25" | 0.0" |
| Port Angeles, WA | 37° | 69° | 28" | 0.4" |
| Makawao, HI | 53° | 75° | 23" | 0.0" |
| Coos Bay, OR | 40° | 66° | 61" | 0.2" |
| Nantucket, MA | 26° | 76° | 44" | 25" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Daly City averaged 1.6° warmer than the 1900s. The biggest change is in January (+2.3°).
A bigger shift than in 65% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods. In a city of 101,000 people, part of the change is the city itself: pavement and buildings hold heat (the urban heat island).
How Daly City compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Daly City’s place among California’s.
Daly City weather by month
Highs, lows and precipitation from NOAA’s grid at Daly City’s center; snow, wet days and snow on the ground from Pacifica 4 Sse, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 57° | 45° | 4.8" | 0.0" | 11 | 0 | 48° – 55° |
| February | 59° | 46° | 4.9" | 0.0" | 12 | 0 | 49° – 58° |
| March | 61° | 47° | 3.6" | 0.0" | 10 | 0 | 50° – 58° |
| April | 62° | 48° | 1.7" | 0.0" | 6 | 0 | 52° – 59° |
| May | 64° | 51° | 0.8" | 0.0" | 4 | 0 | 54° – 61° |
| June | 67° | 52° | 0.2" | 0.0" | 2 | 0 | 56° – 62° |
| July | 67° | 54° | 0.0" | 0.0" | 0 | 0 | 59° – 64° |
| August | 69° | 55° | 0.1" | 0.0" | 1 | 0 | 59° – 66° |
| September | 70° | 55° | 0.1" | 0.0" | 2 | 0 | 59° – 67° |
| October | 68° | 53° | 1.2" | 0.0" | 4 | 0 | 58° – 65° |
| November | 62° | 49° | 2.7" | 0.0" | 7 | 0 | 49° – 59° |
| December | 57° | 45° | 5.4" | 0.0" | 11 | 0 | 48° – 56° |
| Year | 64° | 50° | 25.4" | 0.0" | 69 | 0 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 49° to 59°. July is the most reliable, staying within 5°.
Where Daly City’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Daly City’s center.
- Snow: Pacifica 4 Sse, CA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: San Francisco Dwtn, CA, 5 miles from the city’s center point, 150 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Daly City’s climate
What is the weather like in Daly City?
A typical July afternoon reaches 67°, a January night drops to 45°, and snow is almost unheard of. Milder January nights than 94% of U.S. towns; cooler July afternoons than all but 50 U.S. towns.
How cold does it get in Daly City in winter?
January nights average 45°. A night at 32° or below comes in only some winters (0.0 a year on average). In the coldest January of the last 30 years the month averaged 48°.
How much snow does Daly City get?
About 0.0 inches in a normal winter at Pacifica 4 Sse, CA, so most winters see none.
How hot does it get in Daly City?
July, with a typical high of 67° and a low of 54°. About 3 days a year reach 90° (San Francisco Dwtn, CA).
When is the first and last frost in Daly City?
Most years have no frost at all: a 32° night comes in about 0% of winters at San Francisco Dwtn, CA, usually in December or January.
What growing zone is Daly City in?
Zone 10b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 35°.
What is the best time of year to visit Daly City?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, July, August, September, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Daly City getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 65% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Daly City.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.