Monthly outlook for Chillum Heights, MD: average high 54.9°, average low 39.3°. That is 0.7° above the climate normal for November. Precipitation is expected on 2 days (about 2.7 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 25 November (67.8°), the coolest 27 November (21.6°).
54.9°/39.3°
Average high / low
+0.7°
Above normal
2 / 4
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
57.8°
54.2°
+2°
23 November – 2 December
50.2°
51.8°
-0.9°
3 December – 12 December
at normal
47.6°
—
November records over 66 years
82.4°1 November 1974All-time high
14.5°24 November 1989All-time low
Climate normals and records are computed from the nearest reference point — Chillum (0 mi).
Sat, 1456° / 39°0
56 °
Chillum Heights, Saturday, 14 November
Overcast. High 56°, low 39°.
Pressure29.94 inHg
Wind13.6 mph NW
Humidity56%
Visibility6.2 mi
Dew point27°
Sun, 1551° / 41°0
51 °
Chillum Heights, Sunday, 15 November
Overcast. High 51°, low 41°.
Pressure30.24 inHg
Wind12.1 mph NW
Humidity50%
Visibility6.2 mi
Dew point32°
Mon, 1652° / 35°0
52 °
Chillum Heights, Monday, 16 November
Clear. High 52°, low 35°.
Pressure30.47 inHg
Wind6.4 mph NW
Humidity52%
Visibility6.2 mi
Dew point33°
Tue, 1755° / 35°0
55 °
Chillum Heights, Tuesday, 17 November
Clear. High 55°, low 35°.
Pressure30.56 inHg
Wind5.4 mph NW
Humidity64%
Visibility—
Dew point35°
Wed, 1859° / 36°0
59 °
Chillum Heights, Wednesday, 18 November
Clear. High 59°, low 36°.
Pressure30.50 inHg
Wind4.5 mph NW
Humidity60%
Visibility—
Dew point36°
Thu, 1961° / 44°0
61 °
Chillum Heights, Thursday, 19 November
Clear. High 61°, low 44°.
Pressure30.45 inHg
Wind4.1 mph W
Humidity45%
Visibility—
Dew point32°
Fri, 2064° / 48°0
64 °
Chillum Heights, Friday, 20 November
Overcast. High 64°, low 48°.
Pressure30.39 inHg
Wind6.7 mph NW
Humidity43%
Visibility—
Dew point33°
Sat, 2160° / 47°0
60 °
Chillum Heights, Saturday, 21 November
Partly cloudy. High 60°, low 47°.
Pressure30.36 inHg
Wind4.4 mph N
Humidity55%
Visibility—
Dew point38°
Sun, 2264° / 48°0
64 °
Chillum Heights, Sunday, 22 November
Mostly clear. High 64°, low 48°.
Pressure30.30 inHg
Wind4.2 mph S
Humidity58%
Visibility—
Dew point41°
Mon, 2365° / 50°0
65 °
Chillum Heights, Monday, 23 November
Mostly clear. High 65°, low 50°.
Pressure30.27 inHg
Wind8.9 mph S
Humidity62%
Visibility—
Dew point44°
Tue, 2467° / 53°0.01
67 °
Chillum Heights, Tuesday, 24 November
Light rain. High 67°, low 53°.
Pressure30.18 inHg
Wind14.5 mph S
Humidity88%
Visibility—
Dew point54°
Wed, 2568° / 34°2.06
68 °
Chillum Heights, Wednesday, 25 November
Heavy rain. High 68°, low 34°.
Pressure29.97 inHg
Wind17.5 mph N
Humidity86%
Visibility—
Dew point49°
Thu, 2632° / 26°0.64
32 °
Chillum Heights, Thursday, 26 November
Snow. High 32°, low 26°.
Pressure30.09 inHg
Wind19.8 mph N
Humidity86%
Visibility—
Dew point26°
Fri, 2733° / 22°0
33 °
Chillum Heights, Friday, 27 November
Clear. High 33°, low 22°.
Pressure30.30 inHg
Wind12 mph NW
Humidity81%
Visibility—
Dew point23°
Sat, 2836° / 26°0
36 °
Chillum Heights, Saturday, 28 November
Clear. High 36°, low 26°.
Pressure30.45 inHg
Wind4.6 mph N
Humidity85%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2951° / 37°0.12
51 °
Chillum Heights, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.12 in
Chance of precipitation30%
Record high69° (1960)
Record low23° (2023)
Mon, 3050° / 37°0.12
50 °
Chillum Heights, Monday, 30 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.12 in
Chance of precipitation33%
Record high71° (2001)
Record low22° (1976)
Tue, 0150° / 36°0.15
50 °
Chillum Heights, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.15 in
Chance of precipitation35%
Record high73° (2006)
Record low17° (1967)
Wed, 0249° / 35°0.09
49 °
Chillum Heights, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.09 in
Chance of precipitation25%
Record high65° (1970)
Record low15° (1967)
Thu, 0350° / 35°0.09
50 °
Chillum Heights, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation22%
Record high70° (1998)
Record low20° (1976)
Fri, 0449° / 35°0.08
49 °
Chillum Heights, Friday, 4 December
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.08 in
Chance of precipitation23%
Record high73° (1982)
Record low18° (1966)
Sat, 0548° / 35°0.15
48 °
Chillum Heights, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.15 in
Chance of precipitation33%
Record high72° (1998)
Record low25° (1966)
Sun, 0648° / 34°0.1
48 °
Chillum Heights, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.1 in
Chance of precipitation35%
Record high76° (1998)
Record low15° (2007)
Mon, 0747° / 33°0.12
47 °
Chillum Heights, Monday, 7 December
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.12 in
Chance of precipitation22%
Record high75° (1998)
Record low6° (2002)
Tue, 0847° / 33°0.07
47 °
Chillum Heights, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.07 in
Chance of precipitation25%
Record high71° (1978)
Record low17° (2003)
Wed, 0947° / 33°0.18
47 °
Chillum Heights, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.18 in
Chance of precipitation38%
Record high69° (1966)
Record low17° (1989)
Thu, 1047° / 34°0.16
47 °
Chillum Heights, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.16 in
Chance of precipitation33%
Record high69° (1966)
Record low15° (1989)
Fri, 1147° / 34°0.17
47 °
Chillum Heights, Friday, 11 December
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.17 in
Chance of precipitation33%
Record high69° (2021)
Record low18° (1968)
Sat, 1246° / 33°0.07
46 °
Chillum Heights, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation25%
Record high70° (2015)
Record low12° (1962)
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 Chillum Heights, MD 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 Chillum Heights, MD 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.