Monthly outlook for Hannibal Center, NY: average high 76.6°, average low 61.7°. That is 0.8° above the climate normal for August. Precipitation is expected on 7 days (about 0.9 inches), against a normal of 7 days and 2.2 inches. The warmest day looks like 20 August (87.1°), the coolest 16 August (53.6°).
76.6°/61.7°
Average high / low
+0.8°
Above normal
7 / 7
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
74.5°
75.8°
-0.7°
19 August – 28 August
80.1°
74.4°
+3.2°
29 August – 7 September
at normal
73.1°
—
August records over 66 years
90.5°14 August 2002All-time high
49.3°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — SUNY Oswego (11 mi).
Mon, 1085° / 67°0.15
85 °
Hannibal Center, Monday, 10 August
Light rain. High 85°, low 67°.
Pressure29.94 inHg
Wind6 mph S
Humidity95%
Visibility6.2 mi
Dew point65°
Tue, 1177° / 65°0.02
77 °
Hannibal Center, Tuesday, 11 August
Light rain. High 77°, low 65°.
Pressure29.88 inHg
Wind9.8 mph NW
Humidity62%
Visibility6.2 mi
Dew point62°
Wed, 1279° / 62°0.06
79 °
Hannibal Center, Wednesday, 12 August
Light rain. High 79°, low 62°.
Pressure29.77 inHg
Wind7 mph SE
Humidity69%
Visibility6.2 mi
Dew point60°
Thu, 1368° / 61°0.08
68 °
Hannibal Center, Thursday, 13 August
Light rain. High 68°, low 61°.
Pressure29.80 inHg
Wind18.5 mph NW
Humidity57%
Visibility—
Dew point51°
Fri, 1467° / 57°0.06
67 °
Hannibal Center, Friday, 14 August
Light rain. High 67°, low 57°.
Pressure30.03 inHg
Wind15.1 mph NW
Humidity54%
Visibility—
Dew point49°
Sat, 1570° / 57°0
70 °
Hannibal Center, Saturday, 15 August
Clear. High 70°, low 57°.
Pressure30.18 inHg
Wind14.4 mph NW
Humidity49%
Visibility—
Dew point48°
Sun, 1671° / 54°0
71 °
Hannibal Center, Sunday, 16 August
Overcast. High 71°, low 54°.
Pressure30.15 inHg
Wind7.8 mph W
Humidity60%
Visibility—
Dew point55°
Mon, 1772° / 58°0.02
72 °
Hannibal Center, Monday, 17 August
Light rain. High 72°, low 58°.
Pressure30.03 inHg
Wind5.1 mph S
Humidity69%
Visibility—
Dew point57°
Tue, 1873° / 58°0
73 °
Hannibal Center, Tuesday, 18 August
Partly cloudy. High 73°, low 58°.
Pressure30.06 inHg
Wind9.5 mph N
Humidity59%
Visibility—
Dew point56°
Wed, 1978° / 56°0
78 °
Hannibal Center, Wednesday, 19 August
Overcast. High 78°, low 56°.
Pressure30.09 inHg
Wind6 mph SE
Humidity47%
Visibility—
Dew point54°
Thu, 2087° / 62°0
87 °
Hannibal Center, Thursday, 20 August
Overcast. High 87°, low 62°.
Pressure29.91 inHg
Wind12.1 mph S
Humidity43%
Visibility—
Dew point59°
Fri, 2184° / 73°0.16
84 °
Hannibal Center, Friday, 21 August
Light rain. High 84°, low 73°.
Pressure29.77 inHg
Wind14.4 mph N
Humidity73%
Visibility—
Dew point73°
Sat, 2276° / 64°0
76 °
Hannibal Center, Saturday, 22 August
Partly cloudy. High 76°, low 64°.
Pressure30.00 inHg
Wind8.2 mph N
Humidity49%
Visibility—
Dew point54°
Sun, 2379° / 62°0.06
79 °
Hannibal Center, Sunday, 23 August
Light rain. High 79°, low 62°.
Pressure29.94 inHg
Wind6.2 mph NE
Humidity63%
Visibility—
Dew point63°
Mon, 2477° / 64°0.33
77 °
Hannibal Center, Monday, 24 August
Rain. High 77°, low 64°.
Pressure30.03 inHg
Wind12.5 mph N
Humidity63%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2574° / 64°0.12
74 °
Hannibal Center, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high74°
Average low64°
Average precipitation0.12 in
Chance of precipitation42%
Record high87° (2021)
Record low55° (1971)
Wed, 2675° / 65°0.09
75 °
Hannibal Center, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.09 in
Chance of precipitation37%
Record high84° (2012)
Record low55° (2017)
Thu, 2774° / 65°0.15
74 °
Hannibal Center, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high74°
Average low65°
Average precipitation0.15 in
Chance of precipitation48%
Record high86° (2024)
Record low54° (2017)
Fri, 2875° / 65°0.22
75 °
Hannibal Center, Friday, 28 August
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.22 in
Chance of precipitation50%
Record high90° (2018)
Record low52° (1986)
Sat, 2974° / 65°0.15
74 °
Hannibal Center, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high74°
Average low65°
Average precipitation0.15 in
Chance of precipitation42%
Record high90° (2022)
Record low53° (1986)
Sun, 3073° / 64°0.12
73 °
Hannibal Center, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high73°
Average low64°
Average precipitation0.12 in
Chance of precipitation35%
Record high83° (1991)
Record low49° (1965)
Mon, 3173° / 64°0.14
73 °
Hannibal Center, Monday, 31 August
Climate normal for this date — 60-year average.
Average high73°
Average low64°
Average precipitation0.14 in
Chance of precipitation42%
Record high85° (1993)
Record low52° (1965)
Tue, 0173° / 63°0.07
73 °
Hannibal Center, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.07 in
Chance of precipitation30%
Record high87° (2010)
Record low54° (2017)
Wed, 0273° / 63°0.15
73 °
Hannibal Center, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.15 in
Chance of precipitation40%
Record high84° (2010)
Record low50° (2017)
Thu, 0373° / 63°0.11
73 °
Hannibal Center, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.11 in
Chance of precipitation42%
Record high88° (2018)
Record low53° (2017)
Fri, 0473° / 63°0.11
73 °
Hannibal Center, Friday, 4 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.11 in
Chance of precipitation33%
Record high86° (1973)
Record low53° (1963)
Sat, 0573° / 63°0.11
73 °
Hannibal Center, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.11 in
Chance of precipitation35%
Record high89° (2018)
Record low51° (2000)
Sun, 0673° / 63°0.13
73 °
Hannibal Center, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.13 in
Chance of precipitation40%
Record high86° (2023)
Record low52° (2000)
Mon, 0773° / 62°0.15
73 °
Hannibal Center, Monday, 7 September
Climate normal for this date — 60-year average.
Average high73°
Average low62°
Average precipitation0.15 in
Chance of precipitation45%
Record high88° (2007)
Record low52° (1982)
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 Hannibal Center, NY 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 Hannibal Center, NY 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.