Monthly outlook for Trenholm, OR: average high 51.8°, average low 41.5°. That is 0° below the climate normal for November. Precipitation is expected on 10 days (about 4.5 inches), against a normal of 9 days and 3.9 inches. The warmest day looks like 7 November (60.1°), the coolest 1 November (36.8°).
51.8°/41.5°
Average high / low
−0°
Below normal
10 / 9
Wet days / normal
4.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
1 November – 10 November
53.4°
52.6°
+0.5°
11 November – 20 November
49.1°
49.7°
-0.3°
21 November – 30 November
at normal
46.1°
—
November records over 66 years
68.4°4 November 1980All-time high
6.3°30 November 1985All-time low
Climate normals and records are computed from the nearest reference point — Vernonia (11 mi).
Mon, 0253° / 38°0.01
53 °
Trenholm, Monday, 2 November
Light rain. High 53°, low 38°.
Pressure30.18 inHg
Wind3.4 mph SE
Humidity59%
Visibility6.2 mi
Dew point39°
Tue, 0358° / 42°0.02
58 °
Trenholm, Tuesday, 3 November
Light rain. High 58°, low 42°.
Pressure30.06 inHg
Wind2.3 mph N
Humidity57%
Visibility6.2 mi
Dew point42°
Wed, 0453° / 38°0.08
53 °
Trenholm, Wednesday, 4 November
Light rain. High 53°, low 38°.
Pressure30.09 inHg
Wind6.7 mph SE
Humidity75%
Visibility5.9 mi
Dew point45°
Thu, 0551° / 43°0.02
51 °
Trenholm, Thursday, 5 November
Light rain. High 51°, low 43°.
Pressure30.24 inHg
Wind6.6 mph S
Humidity85%
Visibility6.2 mi
Dew point46°
Fri, 0654° / 42°0.33
54 °
Trenholm, Friday, 6 November
Rain. High 54°, low 42°.
Pressure30.15 inHg
Wind12.2 mph S
Humidity98%
Visibility—
Dew point48°
Sat, 0760° / 38°0.1
60 °
Trenholm, Saturday, 7 November
Light rain. High 60°, low 38°.
Pressure30.06 inHg
Wind8.8 mph S
Humidity86%
Visibility—
Dew point47°
Sun, 0853° / 40°0.31
53 °
Trenholm, Sunday, 8 November
Rain. High 53°, low 40°.
Pressure30.18 inHg
Wind7.1 mph NW
Humidity82%
Visibility—
Dew point45°
Mon, 0955° / 39°0
55 °
Trenholm, Monday, 9 November
Overcast. High 55°, low 39°.
Pressure30.00 inHg
Wind4.4 mph NW
Humidity63%
Visibility—
Dew point35°
Tue, 1054° / 44°0.01
54 °
Trenholm, Tuesday, 10 November
Light rain. High 54°, low 44°.
Pressure29.85 inHg
Wind5.1 mph SW
Humidity60%
Visibility—
Dew point37°
Wed, 1153° / 45°0.87
53 °
Trenholm, Wednesday, 11 November
Rain. High 53°, low 45°.
Pressure29.77 inHg
Wind9.2 mph S
Humidity86%
Visibility—
Dew point48°
Thu, 1252° / 45°0.6
52 °
Trenholm, Thursday, 12 November
Rain. High 52°, low 45°.
Pressure29.41 inHg
Wind15.5 mph E
Humidity88%
Visibility—
Dew point46°
Fri, 1347° / 42°0.44
47 °
Trenholm, Friday, 13 November
Rain. High 47°, low 42°.
Pressure29.65 inHg
Wind20.6 mph W
Humidity84%
Visibility—
Dew point43°
Sat, 1444° / 42°0.61
44 °
Trenholm, Saturday, 14 November
Rain. High 44°, low 42°.
Pressure29.71 inHg
Wind7.6 mph SE
Humidity97%
Visibility—
Dew point42°
Sun, 1553° / 44°0.68
53 °
Trenholm, Sunday, 15 November
Rain. High 53°, low 44°.
Pressure29.15 inHg
Wind17.2 mph S
Humidity80%
Visibility—
Dew point47°
Mon, 1646° / 44°0.41
46 °
Trenholm, Monday, 16 November
Rain. High 46°, low 44°.
Pressure29.68 inHg
Wind12 mph SE
Humidity93%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1749° / 39°0.28
49 °
Trenholm, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.28 in
Chance of precipitation70%
Record high61° (2008)
Record low28° (1961)
Wed, 1848° / 39°0.18
48 °
Trenholm, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.18 in
Chance of precipitation57%
Record high59° (1989)
Record low26° (1985)
Thu, 1948° / 39°0.41
48 °
Trenholm, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.41 in
Chance of precipitation65%
Record high58° (1968)
Record low28° (1977)
Fri, 2048° / 38°0.3
48 °
Trenholm, Friday, 20 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.3 in
Chance of precipitation58%
Record high63° (2002)
Record low26° (1978)
Sat, 2147° / 37°0.29
47 °
Trenholm, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.29 in
Chance of precipitation58%
Record high59° (2002)
Record low18° (1978)
Sun, 2246° / 36°0.31
46 °
Trenholm, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.31 in
Chance of precipitation60%
Record high61° (2017)
Record low14° (1985)
Mon, 2346° / 37°0.31
46 °
Trenholm, Monday, 23 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.31 in
Chance of precipitation67%
Record high59° (2017)
Record low8° (1985)
Tue, 2446° / 37°0.37
46 °
Trenholm, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.37 in
Chance of precipitation63%
Record high56° (1995)
Record low8° (1985)
Wed, 2546° / 37°0.34
46 °
Trenholm, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.34 in
Chance of precipitation65%
Record high57° (1977)
Record low6° (1985)
Thu, 2646° / 36°0.19
46 °
Trenholm, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.19 in
Chance of precipitation57%
Record high57° (2014)
Record low23° (1985)
Fri, 2746° / 37°0.27
46 °
Trenholm, Friday, 27 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.27 in
Chance of precipitation65%
Record high55° (2021)
Record low21° (1985)
Sat, 2846° / 36°0.2
46 °
Trenholm, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.2 in
Chance of precipitation50%
Record high56° (2021)
Record low21° (1985)
Sun, 2945° / 36°0.23
45 °
Trenholm, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.23 in
Chance of precipitation53%
Record high55° (1995)
Record low13° (1985)
Mon, 3045° / 36°0.32
45 °
Trenholm, Monday, 30 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.32 in
Chance of precipitation62%
Record high58° (2008)
Record low6° (1985)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Trenholm, OR are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Trenholm, OR since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.