Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Janesville, California

Fog and sun in daily rhythm. Day 59 of spring. Read this microseason across nine climate regions →

Janesville, CA
Sunday, May 17 at 3:48 AM
55
°
Clear
Feels like
47°
Humidity
23%
Wind
7 mph
Sunrise
5:44 AM
Sunset
8:12 PM
Janesville, CA
Hour by hour · 24h
68°
8p
64°
9p
62°
10p
60°
11p
56°
12a
55°
1a
53°
2a
49°
3a
47°
4a
45°
5a
44°
6a
47°
7a
54°
8a
58°
9a
62°
10a
65°
11a
69°
12p
73°
1p
76°
2p
77°
3p
77°
4p
77°
5p
75°
6p
72°
7p
L 44°H 77°
Janesville, CA
7-day forecast
  1. Today
    May 16
    Overcast
    68°46°
  2. Sunday
    May 17
    Overcast
    55°40°
  3. Monday
    May 18
    Clear
    64°36°
  4. Tuesday
    May 19
    Overcast
    75°43°
  5. Wednesday
    May 20
    Overcast
    80°51°
  6. Thursday
    May 21
    Overcast
    82°53°
  7. Friday
    May 22
    Mostly Clear
    83°55°
Janesville, CA
Anemometer · 24h winds · from true
NESW
From · True
N
356° · veering 30°
Direction
N
356°
Sustained
7
mph
Gust
15
mph
Peak 24h
20
avg 9
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 9 · pk 20 @ 10:00p
−24h−18h−12h−6hnow
Light breeze veering 30° from the n.
Janesville, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
872.7
+0.2 mb in 3h · falling · 25.77 inHg
Now
872.7
mb
3h
+0.2
mb
12h
-4.2
mb
24h
-1.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 871878
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Janesville, CA
Air quality
55
AQI
Moderate
PM 2.5
0.7 μg/m³
PM 10
0.8 μg/m³
NO₂
0.5 μg/m³
Ozone
104.0 μg/m³
UV Index
0.0 Low
Janesville, CA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
12:15 PM
Sunrise
5:44 AM
Daylight
14h 28m
Sunset
8:12 PM
Civil dusk
3:44 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Janesville, CA
The moon
New Moon
0% illuminated
Moonrise
12:54 PM
Moonset
3:49 AM
In sign
♊︎ Gemini
Janesville, CA
Microseason · 28 of 72
May 16–20

Fog and sun in daily rhythm

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Janesville at a glance

  • Today vs. normal: 16°F below the seasonal normal for this latitude
  • Last frost: April 18 (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 17, 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.

ZIP codes in Janesville

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.