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Adams County
 Details for Adams County Freeze Warning  +2 additional alerts
 Thornton
 Details for Thornton Frost Advisory  +1 additional alert

Weather station records and averages

 Reflects data collected since October 25, 2006    
when ThorntonWeather.com went live.

Local Station History
 Since: October 25, 2006

 
Updated: @ 19-Oct-2025 5:35am - next update at 12:00am  
Measurement: Current: Yesterday Month / MTD Year / YTD Station Record
Temperature: Colder 0.8°F than last hour.
Thermometer Average:
Maximum
Temperature:
Minimum
Temperature:
31.3°F
32.4°F
35.5°F
12:00 AM
31.2°F
2:26 AM
 
49.0°F
63.5°F
11:09 AM
35.5°F
11:59 PM
 
56.6°F
87.8°F
Oct-03
31.2°F
Oct-19
 
55.4°F
102.7°F
Jun-20
-6.0°F
Jan-19
 
---
102.9°F
25-Jun-2012
-14.6°F
02-Feb-2011
Wind Chill:
Wind Chill Minimum
Wind Chill:
31.3°F
31.2°F 
2:26 AM
 
35.5°F
11:59 PM
 
31.2°F
Oct-19
 
-16.2°F
Jan-20
 
-31.0°F
22-Dec-2022
Heat Index:
Heat Index Maximum
Heat Index:
31.3°F
35.5°F
12:00 AM
 
63.5°F
11:09 AM
 
84.4°F
Oct-03
 
98.1°F
Jun-20
 
102.9°F
08-Jul-2021
Solar Radiation W/m2:
Heat Index Maximum
Solar Radiation:
Sunshine
Hours:
0
0
12:00 AM
00
Hours
 
729.0
12:42 PM
07
Hours
 
895.0
Oct-04
110
Hours
 
1252.0
May-19
1561
Hours
 
1461.0
08-Jul-2019
---
 
Evapotranspiration:
Heat Index Watering
Index1:
0.006
0.006
in
 
0.100
in
 
1.65
in
 
---
 
 
---
 
UV:  None
UV Index Maximum
UV Index:
0.0
0.0
12:00 AM
 
4.2
12:42 PM
 
6.6
Oct-04
 
10.8
Jul-04
 
15.2
03-Jul-2009
Rain / Snow Melt2:
Rain / Snow Melt Rainfall
or Melt:
Average:
Percent of Average:
0.00 in
0.00 in
 
---
---
 
0.00 in
 
---
---
 
0.52 in
 
0.91 in
57.1%
 
11.57 in
 
15.33 in
75.5%
Rec Year5
21.58 in
2013
---
---
Snow3:
Snow Snow
Fall:
Average:
Percent of Average:
0.00 in
0.00 in
 
---
---
 
0.00 in
 
---
---
 
0.00 in
 
10.1 in
0.0%
Season4
0.00 in
 
55.8 in
0.0%
Rec Season5
84.3 in
2019/2020
---
---
Measurement: Current: Yesterday Month / MTD Year / YTD Station Record
Humidity:
Humidity Maximum
Humidity:
Minimum
Humidity:
82%
82%
5:19 AM
66%
12:00 AM
 
66%
11:59 PM
27%
10:00 AM
 
96%
Oct-15
17%
Oct-03
 
97%
Aug-27
6%
Feb-27
 
100%
12-Feb-2007
0%
01-Jan-2008
Dew Point:
Dew Point Maximum
Dew Point:
Minimum
Dew Point:
26.4°F
26.9°F
4:25 AM
24.8°F
2:51 AM
 
35.5°F
12:36 PM
24.9°F
11:41 PM
 
57.0°F
Oct-15
22.3°F
Oct-12
 
65.7°F
Jul-29
-10.1°F
Jan-19
 
73.2°F
03-Aug-2007
-17.3°F
16-Jan-2024
Wind: N
wind Maximum
Avg Wind Speed:
Avg Wind Gust:
Maximum
Wind Gust:
Wind
Run:
0.0 mph
1.1 mph
3:06 AM
0.0 mph
3.5 mph
3:39 AM
0.06
Miles
 
20.0 mph
12:40 PM
---
31.1 mph 11:51 AM
69.63
Miles
 
20.0 mph
Oct-18
---
31.1 mph
Oct-04
971.48
Miles
 
41.1 mph
Mar-03
---
47.2 mph
Mar-03
21939.89
Miles
 
49.3 mph
17-Feb-2009
---
62.1 mph
17-Apr-2018
---
 
Barometer:   ( inHg)
Barometer Maximum
Barometer:
Minimum
Barometer:
30.330
30.410
12:05 AM
30.324
5:14 AM
 
30.408
11:26 PM
29.501
3:56 AM
 
30.410
Oct-19
29.087
Oct-04
 
30.652
Feb-19
28.809
Mar-14
 
31.086
30-Dec-2014
25.130
17-Dec-2006
Measurement: Current: Yesterday Month / MTD Year / YTD Station Record
Version 3.02 - 31-Dec-2011 - Script by: WebsterWeatherLIVE.com
1Estimated 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.)
2Rain season: Jan 1st to Dec 31st.   3Snow manually measured    4Snow season July 1st to June 30th.
5From this station's records based on complete years data for rain/snow season. Does not include current year/season