Weather in Fremont, California
Fog and sun in daily rhythm. Day 58 of spring. Read this microseason across nine climate regions →
- TodayMay 16Mostly Clear—70°51°
- SundayMay 17Overcast—76°48°
- MondayMay 18Overcast—83°55°
- TuesdayMay 19Clear—89°57°
- WednesdayMay 20Overcast—85°60°
- ThursdayMay 21Overcast—83°57°
- FridayMay 22Partly Cloudy—80°58°
- PM 2.5
- 6.4 μg/m³
- PM 10
- 9.5 μg/m³
- NO₂
- 1.8 μg/m³
- Ozone
- 95.0 μg/m³
- UV Index
- 4.1 Moderate
Flowers blooming in late autumn, a sure sign of a bad winter coming.
- Moonrise
- 12:25 PM
- Moonset
- 2:29 AM
- In sign
- ♉︎ Taurus
Fog and sun in daily rhythm
Fremont at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: April 1 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Warm-season window is open
As of May 16, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
August brings Fremont's warmest temperatures (~68°F mean) while December delivers its coldest (~51°F). Rainfall peaks in February (3.2 inches) and bottoms out in July (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 51° | 3.0″ | 6 |
| February | 53° | 3.2″ | 7 |
| March | 56° | 2.5″ | 6 |
| April | 58° | 1.2″ | 4 |
| May | 62° | 0.5″ | 2 |
| June | 65° | 0.2″ | 0 |
| July | 67° | 0.0″ | 0 |
| August | 68° | 0.0″ | 0 |
| September | 67° | 0.1″ | 0 |
| October | 63° | 0.7″ | 2 |
| November | 55° | 1.6″ | 4 |
| December | 51° | 3.0″ | 7 |
Regional context
Fremont belongs to a hot-summer Mediterranean climate region — a cohort that shares similar temperature ranges, seasonal patterns, and growing conditions across nearby cities.
Similar climates: Los Angeles, CA, San Francisco, CA, San Diego, CA, Riverside, CA, Sacramento, CA.
Naturalist notes
California poppies begin their peak bloom across Fremont's open spaces during late April and early May.
Anna's hummingbirds start their courtship displays in February, diving and calling from perches throughout the area.
Frequently asked
- When does it freeze in Fremont?
- Fremont's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Fremont?
- February is the wettest month with about 3.2 inches of rain on average; the city receives roughly 16 inches annually.
- What is the warmest month in Fremont?
- August is typically warmest, averaging about 68°F.
- What is the coldest month in Fremont?
- December is typically coldest, averaging about 51°F.
- When can I start a vegetable garden in Fremont?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Fremont get?
- Fremont averages about 37 rainy days per year.
- What hardiness zone is Fremont?
- Fremont's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Fremont, California experiences a hot-summer Mediterranean climate zone. January temperatures hover near 51°F while July averages 67°F — a 17°F seasonal swing.
Throughout the year, Fremont receives about 16 inches of precipitation spread over roughly 37 rainy days.
Latitude (37.5°N), proximity to large water bodies, and elevation determine the rhythm of the year — shaping what grows here, when frost is likely, and what the weather story looks like day to day.