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

Weather in Mammoth, Arizona

Saguaro crowns open white. Day 59 of spring. Read this microseason across nine climate regions →

Mammoth, AZ
Sunday, May 17 at 12:40 AM
87
°
Clear
Feels like
74°
Humidity
10%
Wind
18 mph
Sunrise
5:23 AM
Sunset
7:15 PM
Mammoth, AZ
Hour by hour · 24h
89°
5p
88°
6p
81°
7p
80°
8p
79°
9p
76°
10p
74°
11p
74°
12a
70°
1a
66°
2a
66°
3a
65°
4a
65°
5a
65°
6a
69°
7a
74°
8a
77°
9a
80°
10a
82°
11a
84°
12p
86°
1p
88°
2p
87°
3p
87°
4p
L 65°H 89°
Mammoth, AZ
7-day forecast
  1. Today
    May 16
    Clear
    90°66°
  2. Sunday
    May 17
    Overcast
    85°62°
  3. Monday
    May 18
    Overcast
    80°59°
  4. Tuesday
    May 19
    Overcast
    82°57°
  5. Wednesday
    May 20
    Overcast
    85°63°
  6. Thursday
    May 21
    Overcast
    86°61°
  7. Friday
    May 22
    Clear
    88°61°
Mammoth, AZ
Anemometer · 24h winds · from true
NESW
From · True
WSW
258° · veering 9°
Direction
WSW
258°
Sustained
18
mph
Gust
22
mph
Peak 24h
35
avg 13
Beaufort · 4 · MOD 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 13 · pk 35 @ 9:00p
−24h−18h−12h−6hnow
A fresh breeze drives the wsw-bound air across the harbor.
Mammoth, AZ
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
891.6
+0.6 mb in 3h · falling · 26.33 inHg
Now
891.6
mb
3h
+0.6
mb
12h
-4.3
mb
24h
-2.7
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 890896
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Mammoth, AZ
Air quality
78
AQI
Moderate
PM 2.5
2.0 μg/m³
PM 10
3.9 μg/m³
NO₂
0.2 μg/m³
Ozone
121.0 μg/m³
UV Index
1.4 Low
Mammoth, AZ
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:57 AM
Sunrise
5:23 AM
Daylight
13h 52m
Sunset
7:15 PM
Civil dusk
2:43 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Mammoth, AZ
The moon
New Moon
0% illuminated
Moonrise
12:40 PM
Moonset
2:42 AM
In sign
♉︎ Taurus
Mammoth, AZ
Microseason · 28 of 72
May 16–20

Saguaro crowns open white

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Mammoth at a glance

  • Today vs. normal: 8°F above the seasonal normal for this latitude
  • Last frost: March 3 (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

Peak growing season

As of May 17, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

ZIP codes in Mammoth

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.