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AZ Weather Extremes
Past 24 Hours

==========
AZ
High Temp
102°F at Yuma Mcas, AZ
Low Temp
39°F at Grand Canyon, AZ
Precipitation
0.11in at Grand Canyon, AZ
==========
Report Date
Friday, September 17, 2021
Data from US NWS

USA Weather Extremes
Past 24 Hours

==========
USA
High Temp
104°F at Cotulla La Salle County Ap, TX
Low Temp
16°F at Stanley Ranger Station, ID
Precipitation
2.53in at Quillayute State Airport, WA
==========
Report Date
Friday, September 17, 2021
Data from US NWS

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 Phoenix  -  Flash Flood Warning Flash Flood Warning     Flood Advisory Flood Advisory  
 Maricopa County  -  Flash Flood Warning Flash Flood Warning     Flood Advisory Flood Advisory  
 Pinal County  -  Flash Flood Warning Flash Flood Warning     Flood Advisory Flood Advisory  
 Pima County  -  Special Weather Statement Special Weather Statement  

METRIC | IMPERIAL
Updated: 18-Sep-2021 @ 1635  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 7.1°F than last hour.

83.8°F

Heat Index:  85.7°F
Feels like:  86°F
---
High Today
99.7°F
12:47 		Low Today
80.0°F
05:33
Yest High
101.0°F
16:25 		Yest Low
80.1°F
02:15
Sta* High
107.5°F
2016 		Sta* Low
66.4°F
2006
* Station Records Since 4/2006
Rec* High
109°F
2010 		Rec* Low
58°F
1950
Avg* High
100°F
 Avg* Low
78°F
* Records from NOAA
<!-- fixupCondition in='Mostly Cloudy/Stopped raining ' out='Mostly cloudy, Stopped raining' ocnt='2' --><!-- vals split on slash --> Mostly cloudy, Stopped raining <!-- fixupCondition in='Mostly Cloudy/Stopped raining ' out='Mostly cloudy, Stopped raining' ocnt='2' --><!-- vals split on slash --> Mostly cloudy, Stopped raining

Wind from ENE Wind:  ENE
3.9
Gusting to:
 2.0 mph
Current Rain Rain:
0.01 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
16.2 of 100
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tonight

Tonight: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Sunday

Sunday: Sunny
Sunny
Hi 97 °F ↓ Lo 77 °F Hi 98 °F ↓
Selected AZ Cities Forecasts
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 2.2°F since last hour. 65.4°F
Last Hour: Increased 2.2°F since last hour. 2.2°F
High 16:03: 70.1°F
Low 00:05: 52.8°F
Record High: 114.3°F on
9-Jun-2010
Record Low: -24.3°F on
23-May-2021
Wetbulb: 71.8°F
Rain Today
rain graph
Today: 0.01 in
Yesterday: 0.00 in
Last 7 Days: 0.00 in
Sep Rain: 0.04 in
Sep to Date
  Avg:10 		0.53 in
Sep to Date
  Diff from Avg:10 		Under 0.49 in for the month 0.49 in
Sep Avg: 0.83 in
Diff from Avg: Under 0.79 in for the month 0.79 in
Season:1 8.14 in
YTD
  Avg:11 		5.51 in
YTD
  Diff from Avg:11 		Over 2.63 in for the year 2.63 in
Last Rain
Time/Date: 		18-Sep-2021
at 15:57
33 rain days in 2021
2 days in September
0 days since last rain
Current: ENE  3.9 mph
1Hr Average: 6.3 mph
Wind Run: 29.59 miles
Wind Gust
Current: 2.0 mph mph
Today: 23.0 mph 15:56
Month: 23.0 mph 18-Sep
Year: 73.0 mph 12-Jul
Record Gust: 73.0 mph
12-Jul-2021
Sunlight:
12 hrs 16 min
24 sec
of Sunlight Today graph 51.1% 48.9% Which is
2 min 4 sec Shorter
Than Yesterday
Waxing Gibbous, 11 days, 22 hours, 44 minutes in cycle
95%
Illuminated
Humidity Barometer
Current: Increased 14% since last hour. 54%
Last Hour: Increased 14% since last hour. 14%
High 16:03: 57%
Low 12:46: 28%
Record High: 99%
13-Nov-2011
Record Low: 0%
20-Oct-2016
Current: Rising 0.018 inHg/hr 29.919 inHg
Last Hour: Rising slowly
High 10:05: 30.022 in.
Low 15:12: 29.884 in.
Record High: 30.900 inHg
22-Mar-2008
Record Low: 28.821 inHg
9-Nov-2007
Cooling Degree Days Lightning Strikes Heat Index Air
Today: 13.6
Sep: 478.9
2021 to Date: 4125.5
Heating Degree Days
2021 to Date: 568.7
Last Min: 0
Last 30 Mins: 257
Last 60 Mins: 643
Last 12 Hrs: 11805
Sep: 242441
2021 to Date: 3967962
Last
Strike:		 16:34:54
18-Sep-2021
Last Bearing: 176
Last Distance: 85 miles
Current: 85.7°F
High 1247: 101.2°F
Yesterday: 99.2°F
Record: 149.0°F
1-Jun-2010
Quality
Index6:
71

Moderate
Density:
1.16 kg/m3
Current UV Index Current Solar Energy9
0.0
Sunburn in
720 Minutes 		Highest:
12:01
3.1
118 W/m2
35%
W/m2 ⇒ SI 		High Today:
12:43
926  W/m2 Record:
1491 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Current: Afternoon
YTD Avg Temp: 78.6°F
Sunrise: 06:13
Sunset: 18:31
Moonrise: 17:11
Moonset: 03:42
Full Moon: 20-Sep-2021
New Moon: 0406 MST
6-Oct-2021
Fall
Begins:		 1221 MST
22-Sep-2021
 
Updated at Midnight
Current ET: 0.22 in
7-Days Rain: 0.00 in
7-Days ET: 1.28 in
7-Day: 1.276 in water in deficit of what evaporated in last 7 days. 1.276 in
September: 3.31 in water in deficit of what evaporated this month. 3.31 in
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HIGHS: LOWS:
120.6°F
20-Jun-2017 		24.3°F
13-Jan-2013
Daytime Records
  119.5°F
20-Jun-2017 		  37.4°F
14-Jan-2013
Nitetime Records
  107.6°F
10-Jun-2018 		  30.4°F
01-Jan-00
ICN:19 | S3C2:3 | Ajax 3.xx
ISS:Ok | CON:4.6 | RCP:100%
1 Rain season (all year): 1 January - 31 December; Rain season (Monsoon - NOT Monsoon "Season"): 15 June - 30 September (fixed by NWS - no longer relies on 3-day high DP duration).   5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).   6 Air Quality Index (AQI) data as provided by Arizona Department of Environmental Quality - data not available ~0000-0600 MST.   9 Solar Index represents either an absolute scale of solar energy (W/m²) using the station's recorded maximum or a percentage of computed theoretical solar maximum using the station's location and time of day. These indices differ most when the sun is low on the horizon. The current scale is shown, and will toggle if it or the icon is clicked.   10 Historical average only to day 18 of just the month of September for this station since 4/2006.   11 Historical average rain this season to day 18 of September for this station since 4/2006.
 NWS Weather Forecast  -   Outlook This Afternoon & Tonight
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms
NWS forecast: A chance of showers and thunderstorms. Partly sunny. High near 97, with temperatures falling to around 93 in the afternoon. West southwest wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
 Tonight

Tonight: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
NWS forecast: A slight chance of showers and thunderstorms between 9pm and 10pm. Partly cloudy, with a low around 77. East wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Hi 97 °F ↓ Lo 77 °F
 NWS Short Term Weather Forecast
Sunday

Sunday: Sunny
Sunny
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday

Monday: Sunny
Sunny
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday

Tuesday: Sunny
Sunny
Tuesday
Night
Tuesday Night: Clear
Clear
Wednesday

Wednesday: Sunny
Sunny
Hi 98 °F ↓ Lo 73 °F Hi 98 °F Lo 72 °F Hi 100 °F Lo 74 °F Hi 103 °F
Season Countdown Timer by Curly
Precipitation average-to-date script courtesy of Murry Conarroe
Version 6.94 - 23-Sep-2015 - Script Mods by: BurnsvilleWeatherLIVE.com

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Partly sunny and partly cloudy indicate the same amount of cloud coverage - about 50 percent. Partly sunny is used during the daytime, and partly cloudy is used at night when there is no sun.
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