Summary statistics of average monthly temperatures in Kennewick, Washington, collected since the end of the nineteenth century till about 1994. The reader is also welcommed to inspect the warming trends in the location. To convert the results in degrees of Celsius, click here.

Long-Term Summary Statistics in °F.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Minimum	11.77	21.49	39.30	48.57	55.44	61.96	68.46	66.04	57.32	47.44	29.07	19.52
Lower Bound	30.19	36.77	45.47	52.90	60.30	67.02	73.32	71.26	62.77	52.24	40.20	33.37
Average	31.58	37.73	45.97	53.38	60.82	67.50	73.78	71.75	63.30	52.70	40.94	34.26
Upper Bound	32.96	38.69	46.47	53.87	61.34	67.98	74.24	72.24	63.84	53.17	41.67	35.15
Maximum	45.43	47.14	51.69	59.11	66.83	74.23	78.54	77.91	70.07	58.77	47.7	43.32
Sample Size	94	94	94	94	94	94	95	93	95	95	95	95

Data Description

• Observation period: 1900/1 - 1994/12.
• Total number of records: 1140.
• Number of missing data: 8.
• Percentage of missing data: 0.7.
• Minimum monthly temperature: 11.77 °F.
• Maximum monthly temperature: 78.54 °F.

Plot of the average monthly temperatures in Kennewick, Washington.

Plot of the 'raw' monthly average temperatures in Kennewick, Washington.