September 2018 Weather History in Milpitas California, United States

The data for this report comes from the Norman Y. Mineta San José International Airport. See all nearby weather stations

This report shows the past weather for Milpitas, providing a weather history for September 2018. It features all historical weather data series we have available, including the Milpitas temperature history for September 2018. You can drill down from year to month and even day level reports by clicking on the graphs.

Milpitas Temperature History September 2018

Temperature history in September 2018 in Milpitas1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303045°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°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 2018 in Milpitas

Hourly Temperature in September 2018 in Milpitas1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMAugOctcoldcoolwarmcomfortable
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 2018 in Milpitas

Cloud Cover in September 2018 in Milpitas1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in Milpitas

Daily Precipitation in September 2018 in Milpitas181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 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 quantity of liquid or liquid-equivalent precipitation.

Observed Weather in September 2018 in Milpitas

Observed Weather in September 2018 in Milpitas1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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
Tue, Sep 4 Haze, MistHZ, BR
Wed, Sep 5 MistBR
Thu, Sep 6 HazeHZ
Fri, Sep 7 Haze, MistHZ, BR
Sun, Sep 9 Light Rain0.00 in-RA
Sat, Sep 22 Haze, MistHZ, BR
Wed, Sep 26 Haze, MistHZ, BR
Thu, Sep 27 Haze, MistHZ, BR
Fri, Sep 28 HazeHZ

Hours of Daylight and Twilight in September 2018 in Milpitas

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 2018 in Milpitas

The solar day over the course of September 2018. 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 2018 in Milpitas

Solar Elevation and Azimuth in September 2018 in MilpitasSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct0010102020303040405050001010202030304040505060
northeastsouthwest
Solar elevation and azimuth over the course of September 2018. 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 2018 in Milpitas

Moon Rise, Set & Phases in September 2018 in Milpitas1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 264:57 AMAug 264:57 AMSep 911:02 AMSep 911:02 AMSep 247:53 PMSep 247:53 PM7:39 PM7:39 PM6:37 AM6:37 AM6:31 AM6:31 AM7:49 PM7:49 PM7:15 PM7:15 PM7:23 AM7:23 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 2018IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
67%-12:34 PMWNW11:25 PMENE5:39 AMS237,755 mi
2
50%-1:38 PMWNW-6:29 AMS234,921 mi
3
45%12:08 AMENE2:43 PMWNW-7:24 AMS232,064 mi
4
33%12:58 AMENE3:46 PMWNW-8:21 AMS229,362 mi
5
22%1:55 AMENE4:45 PMWNW-9:20 AMS227,046 mi
6
13%2:59 AMENE5:39 PMWNW-10:21 AMS225,372 mi
7
6%4:08 AMENE6:27 PMWNW-11:20 AMS224,575 mi
8
1%5:20 AMENE7:10 PMWNW-12:18 PMS224,814 mi
9
0%6:31 AMENE7:49 PMW-1:13 PMS226,134 mi
10
2%7:42 AME8:25 PMW-2:05 PMS228,449 mi
11
6%8:50 AME8:59 PMW-2:56 PMS231,551 mi
12
13%9:56 AME9:33 PMW-3:45 PMS235,151 mi
13
22%11:00 AMESE10:08 PMWSW-4:35 PMS238,925 mi
14
31%12:02 PMESE10:45 PMWSW-5:24 PMS242,557 mi
15
41%1:02 PMESE11:25 PMWSW-6:13 PMS245,778 mi
16
50%1:58 PMESE--7:03 PMS248,384 mi
17
61%-12:08 AMWSW2:51 PMESE7:53 PMS250,243 mi
18
70%-12:55 AMWSW3:39 PMESE8:42 PMS251,301 mi
19
79%-1:45 AMWSW4:23 PMESE9:30 PMS251,571 mi
20
86%-2:37 AMWSW5:03 PMESE10:18 PMS251,123 mi
21
92%-3:32 AMWSW5:39 PMESE11:04 PMS250,070 mi
22
97%-4:29 AMWSW6:13 PMESE11:49 PMS248,548 mi
23
98%-5:26 AMWSW6:44 PME--
24
100%-6:24 AMW7:15 PME12:34 AMS246,698 mi
25
100%-7:23 AMW7:45 PME1:18 AMS244,651 mi
26
98%-8:24 AMW8:16 PME2:03 AMS242,514 mi
27
94%-9:25 AMW8:49 PMENE2:49 AMS240,362 mi
28
88%-10:28 AMWNW9:25 PMENE3:36 AMS238,244 mi
29
80%-11:32 AMWNW10:06 PMENE4:26 AMS236,184 mi
30
71%-12:36 PMWNW10:53 PMENE5:19 AMS234,201 mi

Humidity Comfort Levels in September 2018 in Milpitas

Humidity Comfort Levels in September 2018 in Milpitas1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in Milpitas

Wind Speed in September 2018 in Milpitas181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mph25 mph25 mphAugOct
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in September 2018 in Milpitas

Hourly Wind Speed in September 2018 in Milpitas1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in Milpitas

Hourly Wind Direction in 2018 in Milpitas1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 2018 in Milpitas

Atmospheric Pressure in September 2018 in Milpitas1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.7 inHg29.7 inHg29.8 inHg29.8 inHg29.9 inHg29.9 inHg30.0 inHg30.0 inHg30.1 inHg30.1 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 Norman Y. Mineta San José International Airport page.

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