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 Details for Cowlitz County Lowlands Heat Advisory
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Local Station History
 Since: January, 1, 2009

Updated: @ 02-May-2026 12:47pm - next update at 3:48pm  
Measurement: Current: Yesterday Month / MTD Year / YTD Station Record
Temperature: Warmer 3.7°F than last hour.
Thermometer Average:
Maximum
Temperature:
Minimum
Temperature:
70.3°F
55.7°F
71.4°F
3:33 PM
51.1°F
3:37 AM
 
57.6°F
68.4°F
3:00 PM
51.2°F
4:09 AM
 
56.9°F
71.4°F
May-02
51.1°F
May-02
 
48.8°F
82.3°F
Apr-30
21.4°F
Jan-25
 
---
110.1°F
27-Jun-2021
15.6°F
16-Jan-2024
Wind Chill:
Wind Chill Minimum
Wind Chill:
70.3°F
51.1°F 
3:37 AM
 
51.2°F
4:09 AM
 
51.1°F
May-02
 
20.8°F
Jan-24
 
14.2°F
15-Jan-2024
Heat Index:
Heat Index Maximum
Heat Index:
74.9°F
71.4°F
3:33 PM
 
68.4°F
3:00 PM
 
71.4°F
May-02
 
81.2°F
Apr-30
 
129.7°F
27-Jun-2021
Solar Radiation W/m2:
Heat Index Maximum
Solar Radiation:
Sunshine
Hours:
258
1016
11:42 AM
01
Hours
 
889.0
12:29 PM
03
Hours
 
1016.0
May-02
04
Hours
 
1118.0
Apr-20
108
Hours
 
1531.0
20-Jun-2022
---
 
Evapotranspiration:
Heat Index Watering
Index1:
0.048
0.048
in
 
0.059
in
 
0.06
in
 
---
 
 
---
 
UV:   Low 
UV Index Maximum
UV Index:
2.5
6.3
1:24 PM
 
5.9
12:28 PM
 
6.3
May-02
 
6.7
Apr-20
 
16.0
20-Jul-2016
Rain2:
Rain / Snow Melt Rainfall
or Melt:
Average:
Percent of Average:
0.00 in
0.00 in
 
---
---
 
0.00 in
 
---
---
 
0.00 in
 
1.14 in
0.0%
 
16.05 in
 
26.85 in
59.8%
Rec Year5
33.76 in
2014
---
---
Measurement: Current: Yesterday Month / MTD Year / YTD Station Record
Humidity:
Humidity Maximum
Humidity:
Minimum
Humidity:
66%
85%
3:36 AM
64%
3:24 PM
 
88%
4:08 AM
61%
1:51 PM
 
88%
May-01
61%
May-01
 
98%
Jan-02
22%
Apr-25
 
100%
30-Nov-2014
0%
26-Jan-2015
Dew Point:
Dew Point Maximum
Dew Point:
Minimum
Dew Point:
58.4°F
59.6°F
3:43 PM
46.3°F
3:12 AM
 
56.7°F
12:39 PM
46.8°F
11:47 PM
 
59.6°F
May-02
46.3°F
May-02
 
60.3°F
Apr-30
19.6°F
Jan-25
 
80.8°F
28-Jun-2021
11.7°F
22-Dec-2022
Wind: SSW
wind Maximum
Avg Wind Speed:
Avg Wind Gust:
Maximum
Wind Gust:
Wind
Run:
1.1 mph
4.8 mph
10:29 AM
1.1 mph
8.1 mph
10:16 AM
17.21
Miles
 
6.1 mph
5:37 PM
---
13.0 mph 3:14 PM
33.58
Miles
 
6.1 mph
May-01
---
13.0 mph
May-01
50.79
Miles
 
12.3 mph
Feb-22
---
21.0 mph
Feb-22
2985.29
Miles
 
27.9 mph
06-Jan-2019
---
33.0 mph
19-Mar-2025
---
 
Barometer:  Falling 0.8 °F/hr( inHg)
Barometer Maximum
Barometer:
Minimum
Barometer:
1012.9
1018.4
2:13 AM
1012.9
3:46 PM
 
1018.4
11:03 PM
1016.1
4:53 PM
 
1018.4
May-01
1012.9
May-02
 
1036.3
Mar-26
992.6
Feb-17
 
1045.4
30-Dec-2014
979.4
27-Dec-2022
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.   5From this station's records based on complete years data for rain/snow season. Does not include current year/season
1 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.)
2 Rain season: Jan 1st to Dec 31st.  3 Snow manually measured   4 Snow season July 1st to June 30th.

Φ = Average Reading

Monthly Station Records
Since: January 1, 2009