September 2015 Weather History in Grand Teton National Park Wyoming, United States

The data for this report comes from the Jackson Hole Airport. See all nearby weather stations

This report shows the past weather for Grand Teton National Park, providing a weather history for September 2015. It features all historical weather data series we have available, including the Grand Teton National Park temperature history for September 2015. You can drill down from year to month and even day level reports by clicking on the graphs.

Grand Teton National Park Temperature History September 2015

Temperature history in September 2015 in Grand Teton National Park1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303010°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FAugOct
The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.

Hourly Temperature in September 2015 in Grand Teton National Park

Hourly Temperature in September 2015 in Grand Teton National Park1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctvery coldcoldcoolwarmcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The hourly reported temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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Cloud Cover in September 2015 in Grand Teton National Park

Cloud Cover in September 2015 in Grand Teton National Park1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
no significant cloudno cloud detectedceiling and visibility ok
The hourly reported cloud coverage, categorized by the percentage of the sky covered by clouds.

Daily Precipitation in September 2015 in Grand Teton National Park

Daily Precipitation in September 2015 in Grand Teton National Park181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 inAugOct
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in September 2015 in Grand Teton National Park

Snow Depth in September 2015 in Grand Teton National Park181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 inAugOct
The daily measured snow depth, where available.

Observed Weather in September 2015 in Grand Teton National Park

Observed Weather in September 2015 in Grand Teton National Park1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
foghazedrizzlelight rainmoderate rainheavy rainfreezing rainsleetsnow grainslight snowmoderate snowheavy snowhailthunderstorm
The hourly observed weather, color coded by category (in order of severity). If multiple reports are present, the most severe code is shown.
DayObservationsPrecipitationCodes
Thu, Sep 3 ThunderstormTS
Fri, Sep 4 Thunderstorm, Thunderstorm in the VicinityTS, VCTS
Sat, Sep 5 Rain, Showers in the Vicinity0.52 inRA, VCSH
Sun, Sep 13 Showers in the VicinityVCSH
Mon, Sep 14 Showers in the VicinityVCSH
Tue, Sep 15 Thunderstorm in the Vicinity, Light Rain, Mist, Showers in the Vicinity0.74 inVCTS, -RA, BR, VCSH
Wed, Sep 16 Light Rain, Showers in the Vicinity1.20 in-RA, VCSH
Thu, Sep 17 Light Rain, Showers in the Vicinity0.14 in-RA, VCSH
Sun, Sep 27 Light Rain, Precipitation in the Vicinity, Showers in the Vicinity-RA, IWC61, IWCA61, IWC16, VCSH, IWCIV02

Hours of Daylight and Twilight in September 2015 in Grand Teton National Park

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

Sunrise & Sunset with Twilight in September 2015 in Grand Teton National Park

The solar day over the course of September 2015. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Solar Elevation and Azimuth in September 2015 in Grand Teton National Park

Solar Elevation and Azimuth in September 2015 in Grand Teton National ParkSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAugOct0010102020303040405000101020203030404050
northeastsouthwest
Solar elevation and azimuth over the course of September 2015. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

Moon Rise, Set & Phases in September 2015 in Grand Teton National Park

Moon Rise, Set & Phases in September 2015 in Grand Teton National Park1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 2912:36 PMAug 2912:36 PMSep 1312:42 AMSep 1312:42 AMSep 278:51 PMSep 278:51 PM7:20 PM7:20 PM6:34 AM6:34 AM6:23 AM6:23 AM7:22 PM7:22 PM7:05 PM7:05 PM7:53 AM7:53 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Sep 2015IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
90%-10:20 AMW9:49 PMENE3:44 AMS224,348 mi
2
81%-11:32 AMWNW10:28 PMENE4:38 AMS226,732 mi
3
71%-12:42 PMWNW11:10 PMENE5:33 AMS229,794 mi
4
60%-1:47 PMWNW11:55 PMENE6:27 AMS233,221 mi
5
50%-2:48 PMWNW-7:20 AMS236,725 mi
6
38%12:44 AMENE3:42 PMWNW-8:13 AMS240,077 mi
7
28%1:37 AMENE4:30 PMWNW-9:04 AMS243,120 mi
8
19%2:32 AMENE5:12 PMWNW-9:54 AMS245,761 mi
9
11%3:29 AMENE5:50 PMWNW-10:42 AMS247,964 mi
10
6%4:27 AMENE6:23 PMWNW-11:27 AMS249,726 mi
11
2%5:25 AMENE6:54 PMW-12:11 PMS251,058 mi
12
0%6:23 AME7:22 PMW-12:54 PMS251,974 mi
13
0%7:21 AME7:50 PMW-1:37 PMS252,472 mi
14
2%8:18 AME8:17 PMW-2:19 PMS252,535 mi
15
6%9:15 AME8:46 PMW-3:01 PMS252,122 mi
16
11%10:13 AMESE9:16 PMWSW-3:45 PMS251,184 mi
17
18%11:10 AMESE9:49 PMWSW-4:30 PMS249,670 mi
18
27%12:08 PMESE10:25 PMWSW-5:17 PMS247,545 mi
19
36%1:04 PMESE11:07 PMWSW-6:06 PMS244,810 mi
20
47%2:00 PMESE11:55 PMWSW-6:57 PMS241,520 mi
21
50%2:53 PMESE--7:51 PMS237,801 mi
22
68%-12:49 AMWSW3:42 PMESE8:46 PMS233,859 mi
23
79%-1:50 AMWSW4:28 PMESE9:42 PMS229,980 mi
24
88%-2:56 AMWSW5:11 PMESE10:38 PMS226,505 mi
25
95%-4:07 AMWSW5:50 PMESE11:35 PMS223,792 mi
26
97%-5:21 AMW6:28 PME--
27
100%-6:37 AMW7:05 PME12:31 AMS222,152 mi
28
100%-7:53 AMW7:42 PME1:27 AMS221,787 mi
29
98%-9:09 AMWNW8:21 PMENE2:23 AMS222,747 mi
30
92%-10:22 AMWNW9:03 PMENE3:19 AMS224,914 mi

Humidity Comfort Levels in September 2015 in Grand Teton National Park

Humidity Comfort Levels in September 2015 in Grand Teton National Park1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The hourly reported humidity comfort level, categorized by dew point. The shaded overlays indicate night and civil twilight.

Wind Speed in September 2015 in Grand Teton National Park

Wind Speed in September 2015 in Grand Teton National Park181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphAugOct
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in September 2015 in Grand Teton National Park

Hourly Wind Speed in September 2015 in Grand Teton National Park1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
0 mph calm 1 mph light air 4 mph light breeze 8 mph gentle breeze 13 mph moderate breeze 18 mph fresh breeze 25 mph strong breeze 31 mph near gale 39 mph gale 47 mph strong gale 55 mph storm 64 mph violent storm 73 mph hurricane force
The hourly reported wind speed, color coded into bands according to the Beaufort scale. The shaded overlays indicate night and civil twilight.

Hourly Wind Direction in 2015 in Grand Teton National Park

Hourly Wind Direction in 2015 in Grand Teton National Park1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOct
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in September 2015 in Grand Teton National Park

Atmospheric Pressure in September 2015 in Grand Teton National Park1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303022 inHg22 inHg24 inHg24 inHg26 inHg26 inHg28 inHg28 inHg30 inHg30 inHgAugOct
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

The details of the data sources used for this report can be found on the Jackson Hole Airport page.

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