| 19:55 EST | 
Partly Cloudy | 0°C / 32°F | -9°C / 16°F | 51% | 1003 mb
(29.62 in) | SSW 30 kph
(SSW 18.4 mph) | - | 10SM |
| | KCEF 110055Z AUTO 24016G24KT 10SM SCT070 M00/M09 A2961
RMK AO2 SLP032 T10021092 |
| 18:55 EST | 
Mostly Cloudy | -1°C / 30°F | -10°C / 14°F | 51% | 1003 mb
(29.62 in) | SW 19 kph
(SW 11.5 mph) | - | 10SM |
| | KCEF 102355Z AUTO 23010KT 10SM BKN065 M01/M10 A2961
RMK AO2 SLP029 T10111096 10032 21016 52023 |
| 17:55 EST | 
Clear | 0°C / 32°F | -10°C / 14°F | 47% | 1002 mb
(29.59 in) | SSW 13 kph
(SSW 8.1 mph) | - | 10SM |
| | KCEF 102255Z AUTO 25007KT 10SM CLR M00/M10 A2958
RMK AO2 SLP022 T10021102 |
| 16:55 EST |
Partly Cloudy | 1°C / 34°F | -10°C / 14°F | 44% | 1001 mb
(29.56 in) | W 24 kph
(W 15 mph) | - | 10SM |
| | KCEF 102155Z AUTO 27013G20KT 10SM FEW065 01/M10 A2956
RMK AO2 SLP015 T00071100 |
| 15:55 EST | 
Partly Cloudy | 1°C / 34°F | -8°C / 18°F | 51% | 1000 mb
(29.53 in) | W 20 kph
(W 12.7 mph) | - | 10SM |
| | KCEF 102055Z AUTO 27011KT 10SM SCT065 01/M08 A2954
RMK AO2 SLP006 T00141085 53025 |
| 14:55 EST |
Partly Cloudy | 2°C / 36°F | -10°C / 14°F | 41% | 999 mb
(29.5 in) | W 32 kph
(W 19.6 mph) | - | 10SM |
| | KCEF 101955Z AUTO 27017G22KT 10SM SCT065 02/M10 A2951
RMK AO2 PK WND 28027/1904 SLP996 T00251098 CHINO RWY05 $ |
| 13:55 EST | 
Mostly Cloudy | 3°C / 37°F | -8°C / 18°F | 45% | 998 mb
(29.47 in) | WNW 33 kph
(WNW 20.7 mph) | - | 10SM |
| | KCEF 101855Z AUTO 29018G26KT 10SM BKN055 03/M08 A2947
RMK AO2 PK WND 29026/1852 SLP985 T00301080 CHINO RWY05 $ |
| 12:55 EST |
Partly Cloudy | 3°C / 37°F | -6°C / 21°F | 52% | 998 mb
(29.47 in) | NW 22 kph
(NW 13.8 mph) | - | 10SM |
| | KCEF 101755Z AUTO 30012KT 10SM SCT049 03/M06 A2946
RMK AO2 SLP981 T00301056 10044 20022 51003 CHINO RWY05 $ |
| 11:55 EST | 
Overcast | 4°C / 39°F | -7°C / 19°F | 45% | 998 mb
(29.47 in) | W 26 kph
(W 16.1 mph) | - | 10SM |
| | KCEF 101655Z AUTO 28014KT 10SM OVC060 04/M07 A2946
RMK AO2 SLP979 T00411066 CHINO RWY05 $ |
| 10:55 EST |
Mostly Cloudy | 4°C / 39°F | -7°C / 19°F | 45% | 998 mb
(29.47 in) | SSW 22 kph
(SSW 13.8 mph) | - | 10SM |
| | KCEF 101555Z AUTO 26012G29KT 10SM BKN065 04/M07 A2947
RMK AO2 PK WND 26029/1546 SLP983 T00401072 CHINO RWY05 $ |
| 09:55 EST | 
Clear | 4°C / 39°F | -4°C / 25°F | 56% | 998 mb
(29.47 in) | SSW 22 kph
(SSW 13.8 mph) | - | 10SM |
| | KCEF 101455Z AUTO 24012KT 10SM CLR 04/M04 A2946
RMK AO2 SLP978 T00361045 51021 CHINO RWY05 $ |
| 08:55 EST |
Clear | 3°C / 37°F | -4°C / 25°F | 60% | 997 mb
(29.44 in) | SSW 26 kph
(SSW 16.1 mph) | - | 10SM |
| | KCEF 101355Z AUTO 24014KT 10SM CLR 03/M04 A2945
RMK AO2 SLP976 T00251043 CHINO RWY05 $ |
| 07:55 EST |
Clear | 2°C / 36°F | -5°C / 23°F | 60% | 997 mb
(29.44 in) | SSW 24 kph
(SSW 15 mph) | - | 10SM |
| | KCEF 101255Z AUTO 24013G20KT 10SM CLR 02/M05 A2943
RMK AO2 SLP970 T00251050 CHINO RWY05 $ |
| 06:55 EST |
Clear | 3°C / 37°F | -5°C / 23°F | 56% | 995 mb
(29.38 in) | SSW 24 kph
(SSW 15 mph) | 0.25 mm
(0.01 in) | 10SM |
| | KCEF 101155Z AUTO 24013G22KT 10SM CLR 03/M05 A2939
RMK AO2 SLP957 P0001 60001 70070 T00261046 10030 20010 53013 CHINO RWY05 $ |
| 05:55 EST |
Mostly Cloudy | 2°C / 36°F | -4°C / 25°F | 65% | 994 mb
(29.35 in) | SSW 9 kph
(SSW 5.8 mph) | - | 10SM |
| | KCEF 101055Z AUTO 24005KT 10SM BKN230 02/M04 A2936
RMK AO2 SLP947 T00211038 $ |
| 04:55 EST |
Clear | 2°C / 36°F | -2°C / 28°F | 75% | 994 mb
(29.35 in) | SSW 13 kph
(SSW 8.1 mph) | - | 10SM |
| | KCEF 100955Z AUTO 24007KT 10SM CLR 02/M02 A2935
RMK AO2 SLP942 T00171023 $ |
| 03:55 EST |
Partly Cloudy | 2°C / 36°F | 1°C / 34°F | 93% | 994 mb
(29.35 in) | SW 7 kph
(SW 4.6 mph) | - | 9SM |
| | KCEF 100855Z AUTO 22004KT 9SM R05/5000VP6000FT FEW070 02/01 A2935
RMK AO2 SLP944 T00220011 51028 $ |
| 02:55 EST |
Mostly Cloudy | 2°C / 36°F | 2°C / 36°F | 100% | 994 mb
(29.35 in) | SW 9 kph
(SW 5.8 mph) | - | 10SM |
| | KCEF 100755Z AUTO 23005KT 10SM BKN055 02/02 A2935
RMK AO2 SLP942 T00200017 $ |
| 02:28 EST | 
Partly Cloudy
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 994 mb
(29.35 in) | S 6 kph
(S 3.5 mph) | - | 4SM |
| | KCEF 100728Z AUTO 19003KT 4SM R05/3500VP6000FT R33/3000VP6000FT BR SCT095 01/01 A2934
RMK AO2 SLP939 $ |
| 02:26 EST |
Partly Cloudy
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 994 mb
(29.35 in) | S 6 kph
(S 3.5 mph) | - | 3SM |
| | KCEF 100726Z AUTO 19003KT 3SM R05/3500V5000FT R33/3000VP6000FT BR FEW100 01/01 A2934
RMK AO2 VIS 1 3/4 RWY23 SLP938 $ |
| 02:25 EST |
Partly Cloudy
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 994 mb
(29.35 in) | S 6 kph
(S 3.5 mph) | - | 2 1/2SM |
| | KCEF 100725Z AUTO 19003KT 2 1/2SM R05/3000V4000FT R33/3000VP6000FT BR FEW001 SCT110 01/01 A2934
RMK AO2 VIS 1 1/4 RWY23 SLP938 $ |
| 02:19 EST |
Partly Cloudy
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 993 mb
(29.32 in) | SSE 6 kph
(SSE 3.5 mph) | - | 2 1/2SM |
| | KCEF 100719Z AUTO 16003KT 2 1/2SM R05/3000V4500FT R33/2800VP6000FT BR SCT012 01/01 A2933
RMK AO2 VIS 3/4 RWY23 SLP937 $ |
| 02:13 EST |
Partly Cloudy
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 993 mb
(29.32 in) | N 7 kph
(N 4.6 mph) | - | 4SM |
| | KCEF 100713Z AUTO 01004KT 4SM R05/3500V5500FT R33/2000VP6000FT BR SCT010 01/01 A2933
RMK AO2 VIS 1/2 RWY23 SCT V BKN SLP935 $ |
| 02:12 EST |
Mostly Cloudy
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 993 mb
(29.32 in) | N 7 kph
(N 4.6 mph) | - | 5SM |
| | KCEF 100712Z AUTO 01004KT 5SM R05/3500V5500FT R33/2000VP6000FT BR BKN007 01/01 A2933
RMK AO2 VIS 1/2 RWY23 BKN V SCT SLP935 $ |
| 02:05 EST |
Mostly Cloudy | 1°C / 34°F | 1°C / 34°F | 100% | 993 mb
(29.32 in) | Calm | - | 7SM |
| | KCEF 100705Z AUTO 00000KT 7SM R05/5000V5500FT R33/1800V3000FT BKN006 01/01 A2932
RMK AO2 VIS 3/4 RWY23 SLP934 $ |
| 02:02 EST |
Mostly Cloudy
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 993 mb
(29.32 in) | Calm | - | 6SM |
| | KCEF 100702Z AUTO 00000KT 6SM R05/4000V5500FT R33/1800V3500FT BR BKN004 02/01 A2932
RMK AO2 VIS 3/4 RWY23 BKN V OVC PRESRR SLP934 $ |
| 02:01 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 993 mb
(29.32 in) | Calm | - | 5SM |
| | KCEF 100701Z AUTO 00000KT 5SM R05/3500V5500FT R33/1800V3500FT BR OVC005 02/01 A2932
RMK AO2 VIS 3/4 RWY23 SLP933 $ |
| 01:59 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 993 mb
(29.32 in) | Calm | - | 3SM |
| | KCEF 100659Z AUTO 00000KT 3SM R05/2600V5500FT R33/2400V3500FT BR OVC003 02/01 A2932
RMK AO2 VIS 1 RWY23 SLP932 $ |
| 01:58 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 993 mb
(29.32 in) | SW 6 kph
(SW 3.5 mph) | - | 2 1/2SM |
| | KCEF 100658Z AUTO 21003KT 2 1/2SM R05/2200V5500FT R33/2400V3500FT BR OVC003 02/01 A2932
RMK AO2 VIS 1 RWY23 SLP932 $ |
| 01:57 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 993 mb
(29.32 in) | SW 6 kph
(SW 3.5 mph) | - | 2SM |
| | KCEF 100657Z AUTO 22003KT 2SM R05/2200V5500FT R33/3000V3500FT BR OVC001 02/01 A2932
RMK AO2 VIS 1 RWY23 SLP931 $ |
| 01:56 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 993 mb
(29.32 in) | Variable 7 kph
(Variable 4.6 mph) | - | 1 3/4SM |
| | KCEF 100656Z AUTO VRB04KT 1 3/4SM R05/1800V5000FT R33/3000V4500FT BR OVC001 02/01 A2932
RMK AO2 VIS 1 RWY23 SLP931 $ |
| 01:55 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 993 mb
(29.32 in) | SW 7 kph
(SW 4.6 mph) | - | 1 1/4SM |
| | KCEF 100655Z AUTO 22004KT 1 1/4SM R05/1400V4500FT R33/3000V5000FT BR OVC001 02/01 A2931
RMK AO2 SLP930 T00150012 $ |
| 01:53 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 993 mb
(29.32 in) | SW 7 kph
(SW 4.6 mph) | - | 1SM |
| | KCEF 100653Z AUTO 23004KT 1SM R05/1400V4000FT R33/3000V5500FT BR OVC001 02/01 A2931
RMK AO2 SLP929 $ |
| 01:49 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 992 mb
(29.29 in) | SSW 7 kph
(SSW 4.6 mph) | - | 1SM |
| | KCEF 100649Z AUTO 24004KT 1SM R05/1400V2600FT R33/3000VP6000FT BR OVC001 02/01 A2930
RMK AO2 VIS 2 1/2 RWY23 SLP927 $ |
| 01:46 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 992 mb
(29.29 in) | SW 9 kph
(SW 5.8 mph) | - | 1SM |
| | KCEF 100646Z AUTO 23005KT 1SM R05/1400V2600FT R33/5000VP6000FT BR OVC002 02/01 A2930
RMK AO2 SLP926 $ |
| 01:44 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 992 mb
(29.29 in) | SSW 7 kph
(SSW 4.6 mph) | - | 1 1/4SM |
| | KCEF 100644Z AUTO 24004KT 1 1/4SM R05/1800V3000FT R33/5500VP6000FT BR OVC002 02/01 A2930
RMK AO2 SLP926 $ |
| 01:35 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 992 mb
(29.29 in) | SW 6 kph
(SW 3.5 mph) | - | 1 1/4SM |
| | KCEF 100635Z AUTO 23003KT 1 1/4SM R05/2000V3000FT BR OVC002 02/01 A2930
RMK AO2 SLP926 $ |
| 01:34 EST |
Overcast
Fog And Mist | 2°C / 36°F | 1°C / 34°F | 93% | 992 mb
(29.29 in) | SW 6 kph
(SW 3.5 mph) | - | 1 1/4SM |
| | KCEF 100634Z AUTO 23003KT 1 1/4SM R05/2000V3000FT R33/5000VP6000FT BR OVC002 02/01 A2930
RMK AO2 SLP926 $ |
| 01:30 EST |
Overcast
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 992 mb
(29.29 in) | SW 6 kph
(SW 3.5 mph) | - | 1SM |
| | KCEF 100630Z AUTO 22003KT 1SM R05/2000V2600FT R33/2200VP6000FT BR OVC001 01/01 A2930
RMK AO2 PRESRR SLP925 $ |
| 01:28 EST |
Overcast
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 992 mb
(29.29 in) | Calm | - | 1SM |
| | KCEF 100628Z AUTO 00000KT 1SM R05/1800V2600FT R33/2200VP6000FT BR OVC001 01/01 A2930
RMK AO2 SLP924 $ |
| 01:23 EST |
Overcast
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 992 mb
(29.29 in) | Calm | - | 1SM |
| | KCEF 100623Z AUTO 00000KT 1SM R05/1600V2600FT R33/2200V2800FT BR OVC002 01/01 A2929
RMK AO2 SLP922 $ |
| 01:22 EST |
Overcast
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 992 mb
(29.29 in) | Calm | - | 3/4SM |
| | KCEF 100622Z AUTO 00000KT 3/4SM R05/1600V2400FT R33/2200V4000FT BR OVC002 01/01 A2929
RMK AO2 SLP921 $ |
| 01:10 EST |
Obscured
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 992 mb
(29.29 in) | Calm | - | 1/2SM |
| | KCEF 100610Z AUTO 00000KT 1/2SM R05/1200V2000FT R33/2000VP6000FT BR VV002 01/01 A2928
RMK AO2 SLP918 $ |
| 01:07 EST |
Obscured
Fog | 1°C / 34°F | 1°C / 34°F | 100% | 992 mb
(29.29 in) | Calm | - | 1/2SM |
| | KCEF 100607Z AUTO 00000KT 1/2SM R05/1000V1600FT R33/2000VP6000FT FG VV002 01/01 A2928
RMK AO2 SLP918 $ |
| 00:58 EST |
Obscured
Fog | 2°C / 36°F | 1°C / 34°F | 93% | 991 mb
(29.26 in) | Variable 6 kph
(Variable 3.5 mph) | - | 1/2SM |
| | KCEF 100558Z AUTO VRB03KT 1/2SM R05/1000V1200FT R33/1400V3500FT FG VV002 02/01 A2927
RMK AO2 SLP915 $ |
| 00:55 EST |
Obscured
Fog | 2°C / 36°F | 1°C / 34°F | 93% | 991 mb
(29.26 in) | Calm | - | 1/2SM |
| | KCEF 100555Z AUTO 00000KT 1/2SM R05/1000V1600FT R33/1200V1600FT FG VV001 02/01 A2927
RMK AO2 SLP915 60000 T00150012 10023 20013 51005 $ |
| 00:50 EST |
Obscured
Fog | 2°C / 36°F | 1°C / 34°F | 93% | 991 mb
(29.26 in) | Calm | - | 1/2SM |
| | KCEF 100550Z AUTO 00000KT 1/2SM R05/1200V1600FT R33/1200V1400FT FG VV001 02/01 A2927
RMK AO2 SLP916 $ |
| 00:43 EST |
Obscured
Fog And Mist | 1°C / 34°F | 1°C / 34°F | 100% | 991 mb
(29.26 in) | Calm | - | 1/2SM |
| | KCEF 100543Z AUTO 00000KT 1/2SM R05/1200V1600FT R33/1200V1800FT BR VV001 01/01 A2927
RMK AO2 SLP917 $ |
| 00:39 EST |
Obscured
Fog | 2°C / 36°F | 1°C / 34°F | 93% | 991 mb
(29.26 in) | SW 9 kph
(SW 5.8 mph) | - | 1/2SM |
| | KCEF 100539Z AUTO 22005KT 1/2SM R05/1000V1600FT R33/1400V1800FT FG VV001 02/01 A2927
RMK AO2 SLP917 $ |
| 00:22 EST |
Obscured
Fog | 1°C / 34°F | 1°C / 34°F | 100% | 991 mb
(29.26 in) | SW 13 kph
(SW 8.1 mph) | - | 1/2SM |
| | KCEF 100522Z AUTO 21007KT 1/2SM R05/0900V1000FT R33/1200V1600FT FG VV001 01/01 A2927
RMK AO2 SLP914 $ |
| 00:18 EST |
Obscured
Fog | 1°C / 34°F | 1°C / 34°F | 100% | 991 mb
(29.26 in) | SW 13 kph
(SW 8.1 mph) | - | 1/4SM |
| | KCEF 100518Z AUTO 21007KT 1/4SM R05/0800V1000FT R33/1200V1400FT FG VV001 01/01 A2926
RMK AO2 SLP913 $ |
