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

Weather in Centennial, Wyoming

High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →

Centennial, WY
Sunday, May 17 at 5:01 AM
44
°
Overcast
Feels like
39°
Humidity
65%
Wind
5 mph
Sunrise
5:44 AM
Sunset
8:17 PM
Centennial, WY
Hour by hour · 24h
44°
11p
42°
12a
41°
1a
41°
2a
41°
3a
41°
4a
38°
5a
35°
6a
37°
7a
50°
8a
55°
9a
58°
10a
60°
11a
62°
12p
65°
1p
66°
2p
67°
3p
67°
4p
66°
5p
65°
6p
63°
7p
59°
8p
54°
9p
52°
10p
L 35°H 67°
Centennial, WY
7-day forecast
  1. Today
    May 16
    Light Drizzle
    33%
    68°39°
  2. Sunday
    May 17
    Snow
    65%
    56°37°
  3. Monday
    May 18
    Heavy Snow
    100%
    35°15°
  4. Tuesday
    May 19
    Foggy
    69%
    34°15°
  5. Wednesday
    May 20
    Overcast
    13%
    40°24°
  6. Thursday
    May 21
    Light Snow Shwrs
    29%
    42°32°
  7. Friday
    May 22
    Overcast
    19%
    56°32°
Centennial, WY
Anemometer · 24h winds · from true
NESW
From · True
SSW
198° · veering 57°
Direction
SSW
198°
Sustained
5
mph
Gust
7
mph
Peak 24h
28
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 28 @ 3:00p
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Centennial, WY
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
749.1
+1.2 mb in 3h · rising · 22.12 inHg
Now
749.1
mb
3h
+1.2
mb
12h
-0.7
mb
24h
-0.5
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 748756
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Centennial, WY
Air quality
65
AQI
Moderate
PM 2.5
3.0 μg/m³
PM 10
4.7 μg/m³
NO₂
4.7 μg/m³
Ozone
93.0 μg/m³
UV Index
0.0 Low
Centennial, WY
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:14 AM
Sunrise
5:44 AM
Daylight
14h 33m
Sunset
8:17 PM
Civil dusk
2:49 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Centennial, WY
The moon
New Moon
0% illuminated
Moonrise
11:51 AM
Moonset
2:52 AM
In sign
♊︎ Gemini
Centennial, WY
Microseason · 28 of 72
May 16–20

High country wildflowers peak

bird
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Centennial at a glance

  • Today vs. normal: 26°F below the seasonal normal for this latitude
  • Last frost: April 24 (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 Centennial

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.