Holly Hills climate

Holly Hills Weather in September

NOAA 1991-2020 normals for Denver Water Dept, 10.3 km from Holly Hills

Average highs run from 87°F on September 1 to 75°F on September 30, and lows from 56°F to 44°F. Normal precipitation for the month is 1.20 in over about 6 wet days.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Holly Hills, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
82°F
Average low
51°F
Precipitation
1.20 in
Record high
98°FSep 2, 2019
Record low
26°FSep 29, 1999
Chance of a freeze
14%
Days of 90°F or more
8.4
Daylight
13 h 03 min to 11 h 48 min
Cloud cover
43%
Humidity
45%
Dew point
36°F
Wind
7.6 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 187°F56°F97°F 201946°F 200623%0%
Sep 287°F56°F98°F 201946°F 200623%0%
Sep 386°F56°F94°F 201741°F 200623%0%
Sep 486°F55°F94°F 201943°F 200623%0%
Sep 586°F55°F97°F 201943°F 200423%0%
Sep 686°F55°F96°F 202043°F 200423%0%
Sep 785°F54°F94°F 202241°F 200123%0%
Sep 885°F54°F95°F 202230°F 202023%0%
Sep 985°F54°F91°F 202130°F 202023%0%
Sep 1084°F53°F94°F 202137°F 202022%0%
Sep 1184°F53°F93°F 202135°F 201422%0%
Sep 1284°F52°F91°F 201832°F 201422%0%
Sep 1383°F52°F93°F 201835°F 199922%0%
Sep 1483°F52°F90°F 201832°F 200322%0%
Sep 1582°F51°F91°F 200037°F 200322%0%
Sep 1682°F51°F91°F 200041°F 199922%0%
Sep 1781°F50°F91°F 200031°F 200622%0%
Sep 1881°F50°F91°F 201832°F 200622%0%
Sep 1980°F49°F93°F 201033°F 200322%0%
Sep 2080°F49°F89°F 201038°F 199922%0%
Sep 2180°F49°F87°F 201734°F 200921%1%
Sep 2279°F48°F85°F 201832°F 200021%1%
Sep 2379°F48°F86°F 200331°F 200021%1%
Sep 2478°F47°F87°F 202029°F 200021%1%
Sep 2578°F47°F89°F 199828°F 200021%1%
Sep 2677°F46°F89°F 201934°F 200021%1%
Sep 2776°F46°F87°F 201535°F 200021%1%
Sep 2876°F45°F88°F 201028°F 199921%1%
Sep 2975°F45°F89°F 202426°F 199921%1%
Sep 3075°F44°F87°F 202337°F 199920%1%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Holly Hills, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

September 1
sunrise 6:28 AM, sunset 7:31 PM
September 30
sunrise 6:55 AM, sunset 6:43 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00052223 (Denver Water Dept), public domain. Records: NOAA GHCN-Daily, station USW00093067, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.