Flood Management > Hydrology & Flood Operations > California State Climatologist > Climate Data

Hydrology &
Flood Operations

California State Climatologist

3310 El Camino Avenue
Suite 200
Sacramento, CA 95821

Mailing Address:
P.O. Box 219000
Sacramento, CA 95821-9000

Flood & Safety Topics

Flood Management

Hydrology & Flood Operations

California State Climatologist

Climate Data

Colorado

Colorado Hydrologic Region

Region Avg	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Avg Temp	54.61	58.81	63.75	70.19	77.84	86.39	91.83	90.78	84.94	74.01	59.93	54.34	72.47
Std Dev T	13.90	14.37	14.96	15.59	15.91	16.69	15.48	14.87	15.49	15.76	14.64	14.17	15.16
Avg Precip	0.77	0.65	0.48	0.15	0.07	0.04	0.21	0.50	0.35	0.28	0.34	0.58	4.41
Std Dev P	0.47	0.30	0.35	0.11	0.06	0.04	0.15	0.23	0.14	0.13	0.40	0.49	2.11

Location:

BLYTHE

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	BLYTHE
State:	CA
Lat:	33.62'
Long:	-114.60'
Elev:	270
ID:	040924
Minimum	37.4	41.8	46.4	52.6	59.9	67.3	76.1	75.3	67.3	54.8	43.4	37.6	55
Maximum	67.6	73	79.3	87.4	95.5	104.1	108.4	106.8	101.8	90.5	76.7	67.7	88.2
Mean	52.5	57.4	62.85	70	77.7	85.7	92.25	91.05	84.55	72.65	60.05	52.65	71.6
Precip.	0.5	0.45	0.35	0.12	0.03	0.05	0.2	0.63	0.4	0.27	0.27	0.56	3.83
HDD	358	202	126	44	5	0	0	0	0	14	168	378	1295
CDD	0	10	81	207	424	662	861	825	609	270	27	1	3977

Location:

BRAWLEY 2 SW

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	BRAWLEY 2 SW
State:	CA
Lat:	32.95'
Long:	-115.55'
Elev:	-100
ID:	041048
Minimum	34.5	39.8	46	52.5	60.9	69.9	76	75.3	67.7	54.2	41.8	33	54.3
Maximum	61.3	68	74.6	82.9	92.3	102.4	108	105.8	98.6	86	70.9	60.6	84.3
Mean	55	58.95	63.35	69.05	76.15	84.45	90.35	90.3	85.2	74.45	60.4	54.85	72.1
Precip.	0.53	0.55	0.66	0.18	0.13	0.07	0.19	0.48	0.25	0.18	0.24	0.25	3.71
HDD	530	312	187	81	13	0	0	0	0	51	274	563	2011
CDD	0	1	41	163	372	634	836	791	544	210	15	0	3607

Location:

CABAZON

Location:

CALEXICO

Location:

DEEP CANYON LAB

Location:

EAGLE MOUNTIAN

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	EAGLE MOUNTAIN
State:	CA
Lat:	33.8'
Long:	-115.45'
Elev:	970
ID:	042598
Minimum	45.8	49.4	53.8	60.3	68.3	77.2	82.7	81.2	75.1	64.4	51.3	45.8	63.1
Maximum	65.2	69.8	75.4	82.7	90.7	100.3	104.5	102.9	97.4	86.3	71.2	65.3	84.5
Mean	55.5	59.6	64.6	71.5	79.5	88.75	93.6	92.05	86.25	75.35	61.25	55.55	73.8
Precip.	0.59	0.57	0.4	0.12	0.09	0.07	0.23	0.9	0.47	0.28	0.23	0.43	4.34
HDD	315	178	133	46	7	0	0	0	0	11	129	312	1131
CDD	7	19	107	234	446	709	879	836	635	326	68	11	4277

Location:

EL CENTRO 2SSW

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	EL CENTRO 2SSW
State:	CA
Lat:	32.76666667 '
Long:	-115.5666667 '
Elev:	-30
ID:	042713
Minimum	41.4	44.9	48.7	53.7	60.5	68.3	75.5	76.3	70.3	59.1	46.1	40.7	57.3
Maximum	70.3	74.6	79.5	86	94.1	103.1	107	105.6	101	90.9	75.6	69.9	88.4
Mean	55.85	59.75	64.1	69.85	77.3	85.7	91.25	90.95	85.65	75	60.85	55.3	72.85
Precip.	0.53	0.37	0.26	0.08	0.03	0.01	0.07	0.34	0.33	0.32	0.23	0.42	2.99
HDD	293	165	120	47	7	0	0	0	0	10	127	311	1080
CDD	6	16	88	191	388	626	817	810	625	323	58	4	3952

Location:

HAYFIELD RESERVOIR

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	HAYFIELD RESERVOIR
State:	CA
Lat:	33.7 '
Long:	-115.6333333 '
Elev:	1370
ID:	043855
Minimum	40	43	46.6	52	59.3	66.9	74.3	73.6	66.6	55.6	43.6	39.3	55.2
Maximum	65.8	69.8	74.9	81.8	89.9	99.4	104.2	102.6	97.4	86.7	71.9	66.2	84.5
Mean	52.9	56.4	60.75	66.9	74.6	83.15	89.25	88.1	82	71.15	57.75	52.75	69.85
Precip.	0.72	0.7	0.5	0.18	0.08	0.01	0.25	0.67	0.32	0.31	0.29	0.5	4.51
HDD	396	258	189	85	20	0	0	0	0	36	205	399	1588
CDD	0	6	46	138	309	533	731	698	496	210	27	2	3196

Location:

IMPERIAL

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	IMPERIAL
State:	CA
Lat:	32.85'
Long:	-115.5666667'
Elev:	-60
ID:	044223
Minimum	43.1	46.9	51	56.1	62.5	70.1	76.9	77.6	72.1	61.1	47.9	42.6	59.1
Maximum	69.9	74.2	79.2	85.6	93.3	102.4	106.1	104.8	100	89.7	75	69.6	87.7
Mean	56.5	60.55	65.1	70.85	77.9	86.25	91.5	91.2	86.05	75.4	61.45	56.1	73.4
Precip.	0.49	0.39	0.29	0.09	0.04	0.01	0.11	0.36	0.34	0.27	0.22	0.42	3.02
HDD	309	172	116	47	7	0	0	0	0	12	129	323	1115
CDD	4	13	73	186	365	600	783	780	606	303	48	3	3764

Location:

INDIO FIRE STATION

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	INDIO FIRE STATION
State:	CA
Lat:	33.73333333'
Long:	-116.2666667'
Elev:	-20
ID:	044259
Minimum	41.7	46.6	52.3	58.7	65.3	73	78.4	77.7	71.5	61	46.6	40.8	59.6
Maximum	71.1	75.7	80.5	86.7	93.6	102.6	106.9	105.6	101.1	91.7	76.9	71.8	88.9
Mean	56.4	61.15	66.4	72.7	79.45	87.8	92.65	91.65	86.3	76.35	61.75	56.3	74.25
Precip.	0.8	0.69	0.39	0.09	0.05	0.03	0.09	0.27	0.21	0.14	0.18	0.36	3.3
HDD	267	135	81	23	4	0	0	0	0	6	109	278	903
CDD	11	30	125	261	464	692	860	836	655	370	74	10	4388

Location:

IRON MOUNTAIN

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	IRON MOUNTAIN
State:	CA
Lat:	34.13333333'
Long:	-115.1333333'
Elev:	920
ID:	044297
Minimum	43.7	47.3	51.9	58.3	66.4	75.4	80.9	79.2	72.7	61.3	48.4	43.3	60.9
Maximum	65.5	71	77.4	85	93.8	103.5	108.2	106.4	100.2	88.5	72.3	65.5	86.7
Mean	54.6	59.15	64.65	71.65	80.1	89.45	94.55	92.8	86.45	74.9	60.35	54.4	73.8
Precip.	0.58	0.51	0.41	0.17	0.11	0.06	0.24	0.42	0.31	0.27	0.25	0.49	3.81
HDD	326	176	118	35	5	0	0	0	0	13	146	337	1156
CDD	6	18	104	240	481	749	931	880	659	328	69	11	4476

Location:

MECCA 2 SE

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	MECCA 2 SE
State:	CA
Lat:	33.56666667'
Long:	-116.0666667'
Elev:	-180
ID:	045502
Minimum	38.9	43.1	48.3	53.8	60.8	67.4	73.5	73.9	67.4	56.5	42.8	37.4	55.5
Maximum	71	76.1	81.7	88.9	96.2	104.5	108.5	107.2	102.6	92.4	77	70.8	90
Mean	54.95	59.6	65	71.35	78.5	85.95	91	90.55	85	74.45	59.9	54.1	72.75
Precip.	0.7	0.6	0.32	0.09	0.02	0.01	0.12	0.28	0.37	0.28	0.22	0.4	3.4
HDD	342	183	100	39	0	0	0	0	0	10	129	351	1154
CDD	0	17	78	210	400	606	794	778	576	286	33	0	3778

Location:

NEEDLES FAA

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	NEEDLES FAA
State:	CA
Lat:	34.76666667'
Long:	-114.6166667'
Elev:	910
ID:	046118
Minimum	42.7	46.4	50.9	57.6	66.7	76.2	82.9	81.4	73.7	61.2	47.7	42.4	61
Maximum	64.8	70.7	77.3	85.2	94	103.9	108.5	106.5	100.1	87.9	71.2	64.5	86.5
Mean	53.8	58.6	64.1	71.4	80.4	90.1	95.7	94.0	86.9	74.6	59.5	53.5	73.8
Precip.	0.7	0.65	0.58	0.25	0.12	0.06	0.31	0.75	0.58	0.32	0.34	0.51	5.15
HDD	346	192	138	41	5	0	0	0	0	14	146	345	1227
CDD	5	16	110	235	482	759	963	910	673	331	56	5	4545

Location:

NILAND

Location:

PALM SPRINGS

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	PALM SPRINGS
State:	CA
Lat:	33.83333333'
Long:	-116.5'
Elev:	420
ID:	046635
Minimum	44.3	47.2	50.8	56	62.7	69.4	75.8	75.8	70.2	60.9	48.4	43.7	58.9
Maximum	70.5	74.8	80.1	87.3	94.7	103.7	108.2	106.6	101.1	90.9	75.7	70.3	88.9
Mean	57.4	61	65.45	71.65	78.7	86.55	92	91.2	85.65	75.9	62.05	57	73.9
Precip.	1.22	1.16	0.54	0.12	0.05	0.04	0.18	0.43	0.34	0.16	0.27	0.65	5.15
HDD	278	149	116	56	0	0	0	0	0	0	93	293	985
CDD	12	31	94	221	397	621	837	803	597	330	57	14	4014

Location:

THERMAL AIRPORT

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	THERMAL AIRPORT
State:	CA
Lat:	33.63333333'
Long:	-116.1666667'
Elev:	-110
ID:	048892
Minimum	39	43.3	48.5	54.7	62.3	68.9	74.8	74.4	68	56.5	42.5	37.6	56
Maximum	70.9	75.1	80.4	86.9	93.9	102.6	106.5	104.9	100.3	90.5	75.9	70.6	88.4
Mean	54.95	59.2	64.45	70.8	78.1	85.75	90.65	89.65	84.15	73.5	59.2	54.1	72.2
Precip.	0.71	0.66	0.35	0.08	0.06	0.03	0.17	0.44	0.35	0.17	0.22	0.38	3.61
HDD	332	181	109	38	0	0	0	0	0	8	117	338	1123
CDD	6	19	81	206	406	630	815	784	582	291	30	0	3850

Location:

TWENTY-NINE PALMS

Normal	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Location:	TWENTY-NINE PALMS
State:	CA
Lat:	34.13333333'
Long:	-116.0333333'
Elev:	1980
ID:	049099
Minimum	36.2	39.3	43.5	49.3	57.1	65	70.8	69.8	63.2	52.2	39.8	35.5	52
Maximum	63.7	68.8	74.9	82.6	91.4	101.2	105.6	103.2	97	85.6	69.4	63.7	84.2
Mean	49.95	54.05	59.2	65.95	74.25	83.1	88.2	86.5	80.1	68.9	54.6	49.6	68.1
Precip.	0.57	0.55	0.41	0.17	0.1	0.03	0.6	0.84	0.5	0.2	0.22	0.42	4.6
HDD	487	316	234	122	7	0	0	0	0	45	260	496	1967
CDD	0	0	23	122	274	525	722	667	438	169	5	0	2945

Flood Management

Hydrology &Flood Operations

California State Climatologist

California State Climatologist

Colorado Hydrologic Region

Hydrology &
Flood Operations