Weather in Jefferson, Pennsylvania
Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →
Jefferson, PA
Sunday, May 17 at 4:02 AM
62
°
Partly Cloudy
Feels like
62°
Humidity
87%
Wind
8 mph
Sunrise
6:03 AM
Sunset
8:30 PM
Jefferson, PA
Hour by hour · 24h
46°
12a
44°
1a
44°
2a
43°
3a
42°
4a
42°
5a
40°
6a
41°
7a
45°
8a
50°
9a
54°
10a
58°
11a
59°
12p
62°
1p
63°
2p
65°
3p
66°
4p
67°
5p
67°
6p
66°
7p
64°
8p
60°
9p
57°
10p
55°
11p
Jefferson, PA
7-day forecast
- TodayMay 17Light Rain39%81°57°
- MondayMay 18Drizzle—90°62°
- TuesdayMay 19Drizzle13%88°61°
- WednesdayMay 20Drizzle77%76°53°
- ThursdayMay 21Overcast21%69°39°
- FridayMay 22Heavy Drizzle45%60°53°
- SaturdayMay 23Drizzle44%70°54°
Jefferson, PA
Next 24 hours · Cold now
Jefferson, PA
Anemometer · 24h winds · from true
From · True
SSW
197° · backing 107°
Direction
SSW
197°
Sustained
8
mph
Gust
12
mph
Peak 24h
21
avg 7
Beaufort · 3 · GENTLE 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
−24h−18h−12h−6hnow
Jefferson, PA
Air quality
39
AQI
Good
- PM 2.5
- 7.5 μg/m³
- PM 10
- 7.7 μg/m³
- NO₂
- 4.4 μg/m³
- Ozone
- 73.0 μg/m³
- UV Index
- 0.0 Low
Jefferson, PA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:35 AM
Sunrise
6:03 AM
Daylight
14h 27m
Sunset
8:30 PM
Civil dusk
1:00 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Jefferson, PA
The moon
New Moon
0% illuminated
- Moonrise
- 10:08 AM
- Moonset
- 12:57 AM
- In sign
- ♊︎ Gemini
Jefferson, PA
Microseason · 28 of 72
May 16–20
Roses open along the stoops
plant
Jefferson at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: April 16 (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.